首页 > 最新文献

Surface & Coatings Technology最新文献

英文 中文
Enhanced wear resistance, corrosion behavior, and thermal management in magnesium alloys with PEO coatings 使用 PEO 涂层提高镁合金的耐磨性、腐蚀性和热管理性能
IF 5.3 2区 材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS Pub Date : 2024-10-30 DOI: 10.1016/j.surfcoat.2024.131438
Ruonan Ji , Shuqi Wang , Xinrui Zhao , Yongchun Zou , Tianyi Zhang , Xin Qian , Guoliang Chen , Yaming Wang , Jiahu Ouyang , Dechang Jia , Yu Zhou
The harsh conditions encountered in aerospace applications, such as high operational temperatures, abrasive wear, and corrosive substances, present significant challenges to the performance and longevity of magnesium alloy components. To create a coating with superior wear resistance, corrosion resistance, and high emissivity, this study employs plasma electrolytic oxidation (PEO) technology to develop a nanocomposite coating doped with carbon nanotubes (CNTs) and hexagonal boron nitride (h-BN). The results demonstrate that the MgO-BN/CNTs coating with an emissivity of 0.82 reduces the equilibrium temperature of the 5 W LED junction by nearly 10 °C compared to the magnesium alloy substrate, showing improved radiative heat dissipation performance. Due to the ability of the porous structure to accommodate abrasive particles, coupled with the lubricating effect of h-BN and CNTs, the friction coefficient of the MgO-BN/CNTs coating is 0.57, which is 21 % lower than that of the MgO coating. Additionally, the coating exhibits excellent corrosion protection, attributed to the dense microstructure and chemical inertness of h-BN. The findings demonstrate that the strategic incorporation of h-BN and CNTs into PEO coatings effectively improves the wear resistance, corrosion resistance, and thermal management performance of magnesium alloys.
航空航天应用中遇到的苛刻条件,如高工作温度、磨料磨损和腐蚀性物质,对镁合金部件的性能和使用寿命提出了重大挑战。为了制造具有优异耐磨性、耐腐蚀性和高发射率的涂层,本研究采用等离子电解氧化(PEO)技术开发了一种掺杂碳纳米管(CNT)和六方氮化硼(h-BN)的纳米复合涂层。结果表明,与镁合金基底相比,发射率为 0.82 的 MgO-BN/CNTs 涂层可将 5 W LED 结的平衡温度降低近 10 °C,显示出辐射散热性能的改善。由于多孔结构能够容纳研磨颗粒,再加上 h-BN 和 CNTs 的润滑作用,MgO-BN/CNTs 涂层的摩擦系数为 0.57,比 MgO 涂层低 21%。此外,由于 h-BN 的致密微观结构和化学惰性,涂层还具有优异的防腐蚀性能。研究结果表明,在 PEO 涂层中策略性地加入 h-BN 和 CNT 可有效改善镁合金的耐磨性、耐腐蚀性和热管理性能。
{"title":"Enhanced wear resistance, corrosion behavior, and thermal management in magnesium alloys with PEO coatings","authors":"Ruonan Ji ,&nbsp;Shuqi Wang ,&nbsp;Xinrui Zhao ,&nbsp;Yongchun Zou ,&nbsp;Tianyi Zhang ,&nbsp;Xin Qian ,&nbsp;Guoliang Chen ,&nbsp;Yaming Wang ,&nbsp;Jiahu Ouyang ,&nbsp;Dechang Jia ,&nbsp;Yu Zhou","doi":"10.1016/j.surfcoat.2024.131438","DOIUrl":"10.1016/j.surfcoat.2024.131438","url":null,"abstract":"<div><div>The harsh conditions encountered in aerospace applications, such as high operational temperatures, abrasive wear, and corrosive substances, present significant challenges to the performance and longevity of magnesium alloy components. To create a coating with superior wear resistance, corrosion resistance, and high emissivity, this study employs plasma electrolytic oxidation (PEO) technology to develop a nanocomposite coating doped with carbon nanotubes (CNTs) and hexagonal boron nitride (h-BN). The results demonstrate that the MgO-BN/CNTs coating with an emissivity of 0.82 reduces the equilibrium temperature of the 5 W LED junction by nearly 10 °C compared to the magnesium alloy substrate, showing improved radiative heat dissipation performance. Due to the ability of the porous structure to accommodate abrasive particles, coupled with the lubricating effect of h-BN and CNTs, the friction coefficient of the MgO-BN/CNTs coating is 0.57, which is 21 % lower than that of the MgO coating. Additionally, the coating exhibits excellent corrosion protection, attributed to the dense microstructure and chemical inertness of h-BN. The findings demonstrate that the strategic incorporation of h-BN and CNTs into PEO coatings effectively improves the wear resistance, corrosion resistance, and thermal management performance of magnesium alloys.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"494 ","pages":"Article 131438"},"PeriodicalIF":5.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improvement in bioactivity, hardness and friction resistance of 3 % manganese-doped hydroxyapatite coated on alumina using radio frequency magnetron sputtering 利用射频磁控溅射技术提高氧化铝上 3%掺锰羟基磷灰石涂层的生物活性、硬度和耐摩擦性
IF 5.3 2区 材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS Pub Date : 2024-10-30 DOI: 10.1016/j.surfcoat.2024.131481
Ranbir Kumar , Deep Shikha , Sanjay Kumar Sinha
Hydroxyapatite (HAP) is a common hard tissue implant material known for its superior biocompatibility and osteoconductivity. However, its poor mechanical strength, brittleness and slow degradation limit the applications. This study explores the enhancement of HAP mechanical properties and bioactivity by coating 3 wt% manganese-doped HAP (Mn-HAP) on another inert biomaterial alumina (Mn-HAP/Al2O3) substrates using the RF magnetron sputtering technique. Characterization of these samples was performed using Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive X-ray Spectroscopy (EDS), Grazing Incidence X-ray Diffraction (GIXRD), Fourier Transform Infrared Spectroscopy (FTIR) and Brunauer-Emmett-Teller (BET) techniques. Mechanical property was assessed through Vicker's hardness and adhesion of the film was studied by scratch testing. Corrosion resistance was evaluated using Tafel plots in Ringer's solution by Electrochemical analyser (ECA), and dielectric properties were measured using Impedance analyser. Biocompatibility was examined by wettability tests, thrombogenicity, antioxidant test, antimicrobial investigation and MTT [3-(4, 5-dimethythiazol-2-yl)-2, 5-diphenyl tetrazolium bromide] assay. The results show that Mn-HAP/Al2O3 coatings exhibit superior properties as compared to pure HAP, alumina, and HAP/Al2O3. Mn-HAP showed enhanced crystallinity and grain refinement, leading to improved hardness of 1198 HV for Mn-HAP/Al2O3 as compared to 39.84 HV for pure HAP and 1028 HV for HAP/Al2O3. The friction coefficient was found to be best in the Mn-HAP/Al2O3 sample. Corrosion rate significantly decreases in Mn-HAP/Al2O3 (1.63 ± 0.28) mmpy after coating on alumina. In vitro studies demonstrated enhanced cell attachment, proliferation, and differentiation after Mn-HAP coating on alumina. Antimicrobial tests revealed improved resistance against E. coli and S. aureus, with Mn-HAP/Al2O3 showing a larger zone of inhibition. The study concludes that 3 wt% Mn-HAP coatings deposited by RF magnetron sputtering hold great promise for enhancing the performance and longevity of hard tissue implants, paving the way for advanced biomedical applications.
羟基磷灰石(HAP)是一种常见的硬组织植入材料,以其优异的生物相容性和骨传导性而闻名。然而,其机械强度差、脆性大、降解慢等特点限制了其应用。本研究采用射频磁控溅射技术,在另一种惰性生物材料氧化铝(Mn-HAP/Al2O3)基底上涂覆 3 wt%的锰掺杂 HAP(Mn-HAP),探索如何提高 HAP 的机械性能和生物活性。使用场发射扫描电子显微镜 (FESEM)、能量色散 X 射线光谱仪 (EDS)、掠入射 X 射线衍射 (GIXRD)、傅立叶变换红外光谱仪 (FTIR) 和 Brunauer-Emmett-Teller (BET) 技术对这些样品进行了表征。机械性能通过维氏硬度进行评估,薄膜的附着力则通过划痕测试进行研究。电化学分析仪(ECA)利用林格氏溶液中的塔菲尔图评估了抗腐蚀性,并利用阻抗分析仪测量了介电性能。通过湿润性测试、血栓形成性、抗氧化测试、抗菌调查和 MTT[3-(4, 5-二甲基噻唑-2-基)-2, 5-二苯基溴化四氮唑]试验检验了生物相容性。结果表明,与纯 HAP、氧化铝和 HAP/Al2O3 相比,Mn-HAP/Al2O3 涂层具有更优越的性能。Mn-HAP 显示出更高的结晶度和晶粒细化度,从而使 Mn-HAP/Al2O3 的硬度提高到 1198 HV,而纯 HAP 为 39.84 HV,HAP/Al2O3 为 1028 HV。Mn-HAP/Al2O3 样品的摩擦系数最佳。在氧化铝上镀膜后,Mn-HAP/Al2O3 的腐蚀速率明显降低(1.63 ± 0.28)mmpy。体外研究表明,在氧化铝上涂覆 Mn-HAP 后,细胞的附着、增殖和分化能力得到增强。抗菌测试表明,Mn-HAP/Al2O3 对大肠杆菌和金黄色葡萄球菌的抗性有所提高,抑制区更大。研究得出结论,通过射频磁控溅射沉积的 3 wt% Mn-HAP 涂层有望提高硬组织植入物的性能和寿命,为先进的生物医学应用铺平道路。
{"title":"Improvement in bioactivity, hardness and friction resistance of 3 % manganese-doped hydroxyapatite coated on alumina using radio frequency magnetron sputtering","authors":"Ranbir Kumar ,&nbsp;Deep Shikha ,&nbsp;Sanjay Kumar Sinha","doi":"10.1016/j.surfcoat.2024.131481","DOIUrl":"10.1016/j.surfcoat.2024.131481","url":null,"abstract":"<div><div>Hydroxyapatite (HAP) is a common hard tissue implant material known for its superior biocompatibility and osteoconductivity. However, its poor mechanical strength, brittleness and slow degradation limit the applications. This study explores the enhancement of HAP mechanical properties and bioactivity by coating 3 wt% manganese-doped HAP (Mn-HAP) on another inert biomaterial alumina (Mn-HAP/Al<sub>2</sub>O<sub>3</sub>) substrates using the RF magnetron sputtering technique. Characterization of these samples was performed using Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive X-ray Spectroscopy (EDS), Grazing Incidence X-ray Diffraction (GIXRD), Fourier Transform Infrared Spectroscopy (FTIR) and Brunauer-Emmett-Teller (BET) techniques. Mechanical property was assessed through Vicker's hardness and adhesion of the film was studied by scratch testing. Corrosion resistance was evaluated using Tafel plots in Ringer's solution by Electrochemical analyser (ECA), and dielectric properties were measured using Impedance analyser. Biocompatibility was examined by wettability tests, thrombogenicity, antioxidant test, antimicrobial investigation and MTT [3-(4, 5-dimethythiazol-2-yl)-2, 5-diphenyl tetrazolium bromide] assay. The results show that Mn-HAP/Al<sub>2</sub>O<sub>3</sub> coatings exhibit superior properties as compared to pure HAP, alumina, and HAP/Al<sub>2</sub>O<sub>3</sub>. Mn-HAP showed enhanced crystallinity and grain refinement, leading to improved hardness of 1198 HV for Mn-HAP/Al<sub>2</sub>O<sub>3</sub> as compared to 39.84 HV for pure HAP and 1028 HV for HAP/Al<sub>2</sub>O<sub>3</sub>. The friction coefficient was found to be best in the Mn-HAP/Al<sub>2</sub>O<sub>3</sub> sample. Corrosion rate significantly decreases in Mn-HAP/Al<sub>2</sub>O<sub>3</sub> (1.63 <span><math><mo>±</mo></math></span> 0.28) mmpy after coating on alumina. In vitro studies demonstrated enhanced cell attachment, proliferation, and differentiation after Mn-HAP coating on alumina. Antimicrobial tests revealed improved resistance against <em>E. coli</em> and <em>S. aureus</em>, with Mn-HAP/Al<sub>2</sub>O<sub>3</sub> showing a larger zone of inhibition. The study concludes that 3 wt% Mn-HAP coatings deposited by RF magnetron sputtering hold great promise for enhancing the performance and longevity of hard tissue implants, paving the way for advanced biomedical applications.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"494 ","pages":"Article 131481"},"PeriodicalIF":5.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantitative analysis of deformation characteristics and corrosion properties of high energy laser shock peened Ni-based superalloy 高能激光冲击强化镍基超合金变形特性和腐蚀性能的定量分析
IF 5.3 2区 材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS Pub Date : 2024-10-30 DOI: 10.1016/j.surfcoat.2024.131470
Yarramilli Vamsi Apuroop , Sanjay Raj , Malar Vadani , Sabeur Msolli , Pooja Gupta , Sanjay Rai , Niroj Maharjan , Ayan Bhowmik
This study examines the influence of high-energy laser shock peening (LSP) using 7 J and 10 J pulse energies on the sub-surface deformation characteristics of Inconel 718 superalloy. High-magnitude compressive residual stresses were induced into the samples after LSP with large residual stress depths of the order of 2 mm – the experimental observations were in good agreement with finite element analyses of the LSP process. The propagation of intense shock waves led to increased strain hardening and dislocation densities that were experimentally quantified by synchrotron diffraction and transmission electron microscopy. Microscopic analyses revealed highly refined grain structure only at the surface without much refinement observed in the residual depth region. Alongside a high degree of strain hardening, profuse amount of adiabatic shear bands was observed in the hardened depth, indicative of simultaneous strain localisation under such high laser pulse energy. These bands occurred along common slip planes in the Ni γ-matrix and could be potential areas of instability leading to failure. The LSP-treated samples exhibited improved corrosion resistance, with higher laser pulse energy peened samples performing better.
本研究探讨了使用 7 J 和 10 J 脉冲能量的高能激光冲击强化(LSP)对 Inconel 718 超合金表层下变形特性的影响。在 LSP 之后,样品中产生了高强度的压缩残余应力,残余应力深度达到 2 mm 左右--实验观察结果与 LSP 过程的有限元分析结果非常吻合。强烈冲击波的传播导致应变硬化和位错密度增加,同步辐射衍射和透射电子显微镜对其进行了实验量化。显微分析表明,晶粒结构仅在表面高度细化,在残余深度区域没有观察到明显的细化。除了高度应变硬化外,在硬化深度还观察到大量绝热剪切带,表明在如此高的激光脉冲能量下应变同时定位。这些剪切带沿着 Ni γ 基质中的共同滑移面出现,可能是导致失效的潜在不稳定区域。经过 LSP 处理的样品具有更好的耐腐蚀性,激光脉冲能量更高的强化样品性能更好。
{"title":"Quantitative analysis of deformation characteristics and corrosion properties of high energy laser shock peened Ni-based superalloy","authors":"Yarramilli Vamsi Apuroop ,&nbsp;Sanjay Raj ,&nbsp;Malar Vadani ,&nbsp;Sabeur Msolli ,&nbsp;Pooja Gupta ,&nbsp;Sanjay Rai ,&nbsp;Niroj Maharjan ,&nbsp;Ayan Bhowmik","doi":"10.1016/j.surfcoat.2024.131470","DOIUrl":"10.1016/j.surfcoat.2024.131470","url":null,"abstract":"<div><div>This study examines the influence of high-energy laser shock peening (LSP) using 7 J and 10 J pulse energies on the sub-surface deformation characteristics of Inconel 718 superalloy. High-magnitude compressive residual stresses were induced into the samples after LSP with large residual stress depths of the order of 2 mm – the experimental observations were in good agreement with finite element analyses of the LSP process. The propagation of intense shock waves led to increased strain hardening and dislocation densities that were experimentally quantified by synchrotron diffraction and transmission electron microscopy. Microscopic analyses revealed highly refined grain structure only at the surface without much refinement observed in the residual depth region. Alongside a high degree of strain hardening, profuse amount of adiabatic shear bands was observed in the hardened depth, indicative of simultaneous strain localisation under such high laser pulse energy. These bands occurred along common slip planes in the Ni γ-matrix and could be potential areas of instability leading to failure. The LSP-treated samples exhibited improved corrosion resistance, with higher laser pulse energy peened samples performing better.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"494 ","pages":"Article 131470"},"PeriodicalIF":5.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-temperature oxidation resistances of coatings on Inconel 718 alloy by boriding, aluminizing, and boroaluminizing 通过硼化、铝化和硼铝化处理 Inconel 718 合金涂层的高温抗氧化性
IF 5.3 2区 材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS Pub Date : 2024-10-30 DOI: 10.1016/j.surfcoat.2024.131506
Xiong Lei , Chen Yang , Yonghua Duan , Lishi Ma , Huarong Qi , Shanju Zheng , Ancang Yang , Yuanhuai He , Yunping Li
Inconel 718 alloy is used at high temperatures and is prone to react with oxygen, leading to a decrease in its high-temperature performance. To improve the high-temperature oxidation resistance of Inconel 718 alloy, in this work, three coatings on Inconel 718 alloy were manufactured by boriding, aluminizing, and boroaluminizing, and the high-temperature oxidation resistances at 800 °C, 900 °C and 1000 °C were investigated. The results showed that the maximum thickness of coatings can be achieved >200 μm. Moreover, these three coatings can improve the high-temperature oxidation resistance of Inconel 718 alloy, and the boroaluminized coating has the best high-temperature oxidation resistance. Besides, the reason for the improvement of high-temperature oxidation resistance is due to the formation of dense oxide layers during the oxidation process, which can prevent further oxidation.
Inconel 718 合金用于高温环境,容易与氧气发生反应,导致高温性能下降。为了提高 Inconel 718 合金的高温抗氧化性,本研究通过渗硼、渗铝和渗硼渗铝在 Inconel 718 合金上制造了三种涂层,并研究了其在 800 ℃、900 ℃ 和 1000 ℃ 下的高温抗氧化性。结果表明,涂层的最大厚度可达 200 μm。此外,这三种涂层都能提高 Inconel 718 合金的高温抗氧化性,其中硼铝涂层的高温抗氧化性最好。此外,耐高温氧化性提高的原因是在氧化过程中形成了致密的氧化层,这可以防止进一步氧化。
{"title":"High-temperature oxidation resistances of coatings on Inconel 718 alloy by boriding, aluminizing, and boroaluminizing","authors":"Xiong Lei ,&nbsp;Chen Yang ,&nbsp;Yonghua Duan ,&nbsp;Lishi Ma ,&nbsp;Huarong Qi ,&nbsp;Shanju Zheng ,&nbsp;Ancang Yang ,&nbsp;Yuanhuai He ,&nbsp;Yunping Li","doi":"10.1016/j.surfcoat.2024.131506","DOIUrl":"10.1016/j.surfcoat.2024.131506","url":null,"abstract":"<div><div>Inconel 718 alloy is used at high temperatures and is prone to react with oxygen, leading to a decrease in its high-temperature performance. To improve the high-temperature oxidation resistance of Inconel 718 alloy, in this work, three coatings on Inconel 718 alloy were manufactured by boriding, aluminizing, and boroaluminizing, and the high-temperature oxidation resistances at 800 °C, 900 °C and 1000 °C were investigated. The results showed that the maximum thickness of coatings can be achieved &gt;200 μm. Moreover, these three coatings can improve the high-temperature oxidation resistance of Inconel 718 alloy, and the boroaluminized coating has the best high-temperature oxidation resistance. Besides, the reason for the improvement of high-temperature oxidation resistance is due to the formation of dense oxide layers during the oxidation process, which can prevent further oxidation.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"494 ","pages":"Article 131506"},"PeriodicalIF":5.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improving the tribological and corrosion behavior of NiB coating with low boron content from optimized lead-free bath on aluminum alloys 通过优化无铅浴改善铝合金上低硼含量镍铍涂层的摩擦学和腐蚀行为
IF 5.3 2区 材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS Pub Date : 2024-10-30 DOI: 10.1016/j.surfcoat.2024.131464
Melisa Köse , Sezer Tan , Buse Yavuz , Ayşe Betül Demir , Hasan Algül , Abdullah Hulusi Kökçam , Enes Furkan Erkan , Mehmet Fatih Taşkin , Harun Gül , Özer Uygun , Mehmet Uysal , Ahmet Alp
This study focuses on producing environmentally friendly, lead-free nickel‑boron (NiB) coatings as an alternative to hard chromium coatings. Using the electroless method, the NiB coatings were fabricated from a lead-free bath, and the effects of varying B and Ni concentrations on the coatings' chemical composition, surface morphology, hardness, corrosion resistance, and wear performance were investigated. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were used to analyze surface morphology and phase composition. Corrosion performance was evaluated using potentiodynamic polarization (PP) and electrochemical impedance spectroscopy (EIS), while wear behavior was tested at sliding speeds of 20, 30, and 40 cm/s. The study highlights the critical role of sliding speed on wear mechanisms, friction coefficient, wear rate, and surface morphology. The analyses revealed that the optimal NiB coating, containing 34 g/L Ni and 3 g/L B, exhibited the highest hardness, the lowest corrosion rate, and the highest wear rate performance. The values obtained from these analyses were 891 HV for hardness, 8.87 × 10−6 mpy for corrosion rate, and 2.21 × 10−4 mm3/N·m for wear rate. The use of analysis of variance (ANOVA) identified key factors influencing these properties. The findings suggest that optimizing boron and nickel concentrations significantly enhances NiB coatings' corrosion resistance and wear performance, making them suitable for industrial applications.
本研究的重点是生产环保型无铅镍硼(NiB)镀层,以替代硬铬镀层。研究采用无铅镀液,通过无电解法制备了镍硼镀层,并研究了不同浓度的硼和镍对镀层的化学成分、表面形貌、硬度、耐腐蚀性和磨损性能的影响。扫描电子显微镜(SEM)和 X 射线衍射(XRD)用于分析表面形貌和相组成。使用电位极化(PP)和电化学阻抗谱(EIS)评估了腐蚀性能,并在 20、30 和 40 厘米/秒的滑动速度下测试了磨损行为。研究强调了滑动速度对磨损机制、摩擦系数、磨损率和表面形态的关键作用。分析表明,含 34 克/升 Ni 和 3 克/升 B 的最佳 NiB 涂层具有最高的硬度、最低的腐蚀率和最高的磨损率性能。分析得出的硬度值为 891 HV,腐蚀率为 8.87 × 10-6 mpy,磨损率为 2.21 × 10-4 mm3/N-m。利用方差分析(ANOVA)确定了影响这些性能的关键因素。研究结果表明,优化硼和镍的浓度可显著提高镍硼涂层的耐腐蚀性和磨损性能,使其适用于工业应用。
{"title":"Improving the tribological and corrosion behavior of NiB coating with low boron content from optimized lead-free bath on aluminum alloys","authors":"Melisa Köse ,&nbsp;Sezer Tan ,&nbsp;Buse Yavuz ,&nbsp;Ayşe Betül Demir ,&nbsp;Hasan Algül ,&nbsp;Abdullah Hulusi Kökçam ,&nbsp;Enes Furkan Erkan ,&nbsp;Mehmet Fatih Taşkin ,&nbsp;Harun Gül ,&nbsp;Özer Uygun ,&nbsp;Mehmet Uysal ,&nbsp;Ahmet Alp","doi":"10.1016/j.surfcoat.2024.131464","DOIUrl":"10.1016/j.surfcoat.2024.131464","url":null,"abstract":"<div><div>This study focuses on producing environmentally friendly, lead-free nickel‑boron (Ni<img>B) coatings as an alternative to hard chromium coatings. Using the electroless method, the Ni<img>B coatings were fabricated from a lead-free bath, and the effects of varying B and Ni concentrations on the coatings' chemical composition, surface morphology, hardness, corrosion resistance, and wear performance were investigated. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were used to analyze surface morphology and phase composition. Corrosion performance was evaluated using potentiodynamic polarization (PP) and electrochemical impedance spectroscopy (EIS), while wear behavior was tested at sliding speeds of 20, 30, and 40 cm/s. The study highlights the critical role of sliding speed on wear mechanisms, friction coefficient, wear rate, and surface morphology. The analyses revealed that the optimal Ni<img>B coating, containing 34 g/L Ni and 3 g/L B, exhibited the highest hardness, the lowest corrosion rate, and the highest wear rate performance. The values obtained from these analyses were 891 HV for hardness, 8.87 × 10<sup>−6</sup> mpy for corrosion rate, and 2.21 × 10<sup>−4</sup> mm<sup>3</sup>/N·m for wear rate. The use of analysis of variance (ANOVA) identified key factors influencing these properties. The findings suggest that optimizing boron and nickel concentrations significantly enhances Ni<img>B coatings' corrosion resistance and wear performance, making them suitable for industrial applications.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"494 ","pages":"Article 131464"},"PeriodicalIF":5.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Surface modification of WE43 Mg alloy via combination of cold spray and micro-arc oxidation for wear related applications at high temperatures 通过冷喷涂和微弧氧化相结合的方法对 WE43 Mg 合金进行表面改性,用于高温下的磨损相关应用
IF 5.3 2区 材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS Pub Date : 2024-10-30 DOI: 10.1016/j.surfcoat.2024.131530
Mertcan Kaba , Faiz Muhaffel , Ugur Malayoglu , Huseyin Cimenoglu
This study investigates the high temperature wear behaviour of a WE43 Mg alloy after covering it with single and dual layer coatings. For this purpose, cold spray and micro-arc oxidation processes were employed individually and sequentially. Single-layer coatings fabricated by cold spray and micro-arc oxidation processes were Al/Al2O3 composite and MgO-based ceramic, respectively. Sequential application of cold spray and micro arc oxidation processes induced dual layer coating upon synthesizing an external Al2O3–based layer over the Al/Al2O3 composite layer. Results of the wear tests conducted under the load of 2 N revealed the superior resistance of the dual layer coated sample against the rubbing action of the counterface compared to single layer coatings. Thus, the presence of a relatively hard and tough external Al2O3-based layer over the Al/Al2O3 composite layer sustained protection up to the temperature of 320 °C, where the dominant wear mechanism was fatigue wear. However, the increase in the test temperature to 350 °C caused detachment of the external Al2O3-based layer. Reduction of the wear test load from 2 to 1 N resulted in the remaining of external Al2O3-based layer intact with the underlying Al/Al2O3 composite layer even at a test temperature of 350 °C. It is therefore concluded that the combination of cold spray and micro-arc oxidation processes is promising to broaden the reliable use of WE43 and other Mg alloys in wear related applications at high service temperatures.
本研究探讨了 WE43 镁合金在覆盖单层和双层涂层后的高温磨损特性。为此,分别采用了冷喷和微弧氧化工艺。通过冷喷涂和微弧氧化工艺制作的单层涂层分别是 Al/Al2O3 复合材料和氧化镁基陶瓷。在 Al/Al2O3 复合材料层上合成外部 Al2O3 基层后,冷喷涂和微弧氧化工艺的连续应用产生了双层涂层。在 2 N 负荷下进行的磨损测试结果表明,与单层涂层相比,双层涂层样品具有更强的抗摩擦力。因此,在 Al/Al2O3 复合材料层上有一层相对坚硬和韧性较强的 Al2O3 基外层,可以在 320 °C 的温度下持续提供保护,在这种温度下,主要的磨损机制是疲劳磨损。然而,当试验温度升高到 350 ℃ 时,外部 Al2O3 基复合层会脱落。将磨损测试载荷从 2 牛顿降低到 1 牛顿后,即使在 350 ℃ 的测试温度下,外部的 Al2O3 基层仍与底层的 Al/Al2O3 复合材料层保持完整。因此,冷喷和微弧氧化工艺的结合有望扩大 WE43 和其他镁合金在高使用温度下磨损相关应用中的可靠使用范围。
{"title":"Surface modification of WE43 Mg alloy via combination of cold spray and micro-arc oxidation for wear related applications at high temperatures","authors":"Mertcan Kaba ,&nbsp;Faiz Muhaffel ,&nbsp;Ugur Malayoglu ,&nbsp;Huseyin Cimenoglu","doi":"10.1016/j.surfcoat.2024.131530","DOIUrl":"10.1016/j.surfcoat.2024.131530","url":null,"abstract":"<div><div>This study investigates the high temperature wear behaviour of a WE43 Mg alloy after covering it with single and dual layer coatings. For this purpose, cold spray and micro-arc oxidation processes were employed individually and sequentially. Single-layer coatings fabricated by cold spray and micro-arc oxidation processes were Al/Al<sub>2</sub>O<sub>3</sub> composite and MgO-based ceramic, respectively. Sequential application of cold spray and micro arc oxidation processes induced dual layer coating upon synthesizing an external Al<sub>2</sub>O<sub>3</sub>–based layer over the Al/Al<sub>2</sub>O<sub>3</sub> composite layer. Results of the wear tests conducted under the load of 2 N revealed the superior resistance of the dual layer coated sample against the rubbing action of the counterface compared to single layer coatings. Thus, the presence of a relatively hard and tough external Al<sub>2</sub>O<sub>3</sub>-based layer over the Al/Al<sub>2</sub>O<sub>3</sub> composite layer sustained protection up to the temperature of 320 °C, where the dominant wear mechanism was fatigue wear. However, the increase in the test temperature to 350 °C caused detachment of the external Al<sub>2</sub>O<sub>3</sub>-based layer. Reduction of the wear test load from 2 to 1 N resulted in the remaining of external Al<sub>2</sub>O<sub>3</sub>-based layer intact with the underlying Al/Al<sub>2</sub>O<sub>3</sub> composite layer even at a test temperature of 350 °C. It is therefore concluded that the combination of cold spray and micro-arc oxidation processes is promising to broaden the reliable use of WE43 and other Mg alloys in wear related applications at high service temperatures.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"494 ","pages":"Article 131530"},"PeriodicalIF":5.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hardness and Young's modulus evolution of low-power plasma sprayed Inconel 625 coatings exposed to high temperatures 暴露于高温下的低功率等离子喷涂因科镍合金 625 涂层的硬度和杨氏模量演变
IF 5.3 2区 材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS Pub Date : 2024-10-30 DOI: 10.1016/j.surfcoat.2024.131527
David Merino-Millan , Miguel Ángel Garrido-Maneiro , Claudio J. Múnez , Pedro Poza
The use of renewable energy sources has been increasing in recent years as it aims to balance the production of fossil fuels by 2050. Among the various alternatives, concentrated solar power plants are considered the most feasible due to their capability of storing energy. Ongoing research is conducted to enhance the performance of third-generation plants by achieving higher temperatures. It makes necessary to explore new materials. This research is focused on concentrated solar power plants with central tower receivers, for which coatings used nowadays do not withstand the new requirements. For this reason, an alternative plasma sprayed Inconel 625 coating has been proposed. This study confidently presents an analysis of the high temperature exposure effects on the coating's mechanical properties at two temperatures, 520 and 800 °C. The study focuses on the Young's modulus and hardness, and the results demonstrate a significant improvement in these properties due to the formation of secondary phases. Coating hardness increased gradually from 4.12 GPa to 5.3 GPa during exposition at 520 °C. In contrast, the increment was attained quickly during the first 24 h exposure at 800 °C, reaching 4.5 GPa, and then maintained for all times studied. The microstructure was characterized using transmission electron microscopy, which identified the presence of carbides and intermetallic phases. The application of these coatings will significantly enhance the performance of solar receivers due to their superior properties compared to the currently available Pyromark coatings.
为了在 2050 年前平衡化石燃料的生产,近年来可再生能源的使用日益增多。在各种替代能源中,聚光太阳能发电厂因其储能能力而被认为是最可行的。目前正在进行的研究旨在通过实现更高的温度来提高第三代发电站的性能。因此有必要探索新材料。这项研究的重点是带有中央塔式接收器的聚光太阳能发电站,目前使用的涂层无法满足新的要求。为此,我们提出了一种等离子喷涂因科镍合金 625 涂层的替代方案。本研究分析了高温暴露在 520 和 800 °C 两种温度下对涂层机械性能的影响。研究重点是杨氏模量和硬度,结果表明由于形成了次生相,这些性能得到了显著改善。涂层硬度在 520 ℃ 暴晒期间从 4.12 GPa 逐渐增加到 5.3 GPa。与此相反,在 800 °C 下暴露 24 小时后,硬度迅速增加,达到 4.5 GPa,并在所有研究时间内保持不变。透射电子显微镜对微观结构进行了表征,确定了碳化物和金属间相的存在。与现有的 Pyromark 涂层相比,这些涂层具有更优越的性能,其应用将大大提高太阳能接收器的性能。
{"title":"Hardness and Young's modulus evolution of low-power plasma sprayed Inconel 625 coatings exposed to high temperatures","authors":"David Merino-Millan ,&nbsp;Miguel Ángel Garrido-Maneiro ,&nbsp;Claudio J. Múnez ,&nbsp;Pedro Poza","doi":"10.1016/j.surfcoat.2024.131527","DOIUrl":"10.1016/j.surfcoat.2024.131527","url":null,"abstract":"<div><div>The use of renewable energy sources has been increasing in recent years as it aims to balance the production of fossil fuels by 2050. Among the various alternatives, concentrated solar power plants are considered the most feasible due to their capability of storing energy. Ongoing research is conducted to enhance the performance of third-generation plants by achieving higher temperatures. It makes necessary to explore new materials. This research is focused on concentrated solar power plants with central tower receivers, for which coatings used nowadays do not withstand the new requirements. For this reason, an alternative plasma sprayed Inconel 625 coating has been proposed. This study confidently presents an analysis of the high temperature exposure effects on the coating's mechanical properties at two temperatures, 520 and 800 °C. The study focuses on the Young's modulus and hardness, and the results demonstrate a significant improvement in these properties due to the formation of secondary phases. Coating hardness increased gradually from 4.12 GPa to 5.3 GPa during exposition at 520 °C. In contrast, the increment was attained quickly during the first 24 h exposure at 800 °C, reaching 4.5 GPa, and then maintained for all times studied. The microstructure was characterized using transmission electron microscopy, which identified the presence of carbides and intermetallic phases. The application of these coatings will significantly enhance the performance of solar receivers due to their superior properties compared to the currently available Pyromark coatings.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"494 ","pages":"Article 131527"},"PeriodicalIF":5.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of wear and corrosion resistance in acidic and chloride solutions of Cathodic Arc PVD chromium nitride coatings on untreated and plasma nitrided AISI 4140 steel 未处理和等离子氮化 AISI 4140 钢上的阴极电弧 PVD 氮化铬涂层在酸性和氯化物溶液中的耐磨性和耐腐蚀性评估
IF 5.3 2区 材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS Pub Date : 2024-10-30 DOI: 10.1016/j.surfcoat.2024.131476
A. Justina Maskavizan , Juan Pablo Quintana , Eugenia L. Dalibón , Adriana B. Márquez , Sonia P. Brühl , Silvia B. Farina
Chromium nitride ceramic like coatings are well known for their hardness and wear resistance, especially under severe conditions. When deposited on mild steel, nitriding is required for such applications to create a gradient hardness profile and improve the coating adhesion and the system's mechanical properties. Corrosion resistance is also necessary since these chromium coatings are recommended for applications in the plastic mould and injection industry. Therefore, in this work, the combination of a nitriding without white layer pretreatment and CrN coating was studied in a chloride and an acidic electrolyte, to asses if the diffusion layer also plays an important role as a corrosion protection treatment. Coating microstructure, adhesion to both nitrided and non-nitrided steel, wear resistance, and corrosion resistance in chloride and acidic media were evaluated. For comparison, bare and nitrided steel were also examined. Results indicated an improvement in the adhesion for the duplex treatment (nitriding + CrN). The CrN coating demonstrated a considerably lower coefficient of friction and wear rate compared to both non-nitrided and nitrided steel. Regarding corrosion, the iron nitride layer provides some protection in chloride environments; however, in acidic media, only the CrN coating plays a protective role. In both media, localized attack occurred at sites where the coating had defects, such as pores or pinholes through which the electrolyte comes into contact with the substrate. The duplex treatment proved to be the most effective surface treatment for AISI 4140, achieving excellent tribological properties, good adhesion, and high corrosion resistance in both neutral chloride and acidic solutions.
氮化铬陶瓷涂层以其硬度和耐磨性而闻名,尤其是在严酷的条件下。在低碳钢上沉积时,需要进行氮化处理,以形成梯度硬度曲线,提高涂层的附着力和系统的机械性能。由于这些铬涂层被推荐用于塑料模具和注塑行业,因此耐腐蚀性也是必要的。因此,在这项工作中,我们研究了在氯化物和酸性电解液中将无白层预处理的氮化与 CrN 涂层相结合的方法,以确定扩散层是否也能发挥重要的防腐蚀处理作用。对涂层的微观结构、与氮化钢和非氮化钢的附着力、耐磨性以及在氯化物和酸性介质中的耐腐蚀性进行了评估。为了进行比较,还对裸钢和氮化钢进行了检测。结果表明,双相处理(氮化 + CrN)的附着力有所提高。与未氮化钢和氮化钢相比,CrN 涂层的摩擦系数和磨损率都大大降低。在腐蚀方面,氮化铁层在氯化物环境中提供了一定的保护;但在酸性介质中,只有铬N涂层起到了保护作用。在这两种介质中,局部腐蚀都发生在涂层有缺陷的地方,如电解液与基体接触的孔隙或针孔。事实证明,双相处理是 AISI 4140 最有效的表面处理方法,在中性氯化物和酸性溶液中都能获得优异的摩擦学性能、良好的附着力和高耐腐蚀性。
{"title":"Evaluation of wear and corrosion resistance in acidic and chloride solutions of Cathodic Arc PVD chromium nitride coatings on untreated and plasma nitrided AISI 4140 steel","authors":"A. Justina Maskavizan ,&nbsp;Juan Pablo Quintana ,&nbsp;Eugenia L. Dalibón ,&nbsp;Adriana B. Márquez ,&nbsp;Sonia P. Brühl ,&nbsp;Silvia B. Farina","doi":"10.1016/j.surfcoat.2024.131476","DOIUrl":"10.1016/j.surfcoat.2024.131476","url":null,"abstract":"<div><div>Chromium nitride ceramic like coatings are well known for their hardness and wear resistance, especially under severe conditions. When deposited on mild steel, nitriding is required for such applications to create a gradient hardness profile and improve the coating adhesion and the system's mechanical properties. Corrosion resistance is also necessary since these chromium coatings are recommended for applications in the plastic mould and injection industry. Therefore, in this work, the combination of a nitriding without white layer pretreatment and CrN coating was studied in a chloride and an acidic electrolyte, to asses if the diffusion layer also plays an important role as a corrosion protection treatment. Coating microstructure, adhesion to both nitrided and non-nitrided steel, wear resistance, and corrosion resistance in chloride and acidic media were evaluated. For comparison, bare and nitrided steel were also examined. Results indicated an improvement in the adhesion for the duplex treatment (nitriding + CrN). The CrN coating demonstrated a considerably lower coefficient of friction and wear rate compared to both non-nitrided and nitrided steel. Regarding corrosion, the iron nitride layer provides some protection in chloride environments; however, in acidic media, only the CrN coating plays a protective role. In both media, localized attack occurred at sites where the coating had defects, such as pores or pinholes through which the electrolyte comes into contact with the substrate. The duplex treatment proved to be the most effective surface treatment for AISI 4140, achieving excellent tribological properties, good adhesion, and high corrosion resistance in both neutral chloride and acidic solutions.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"494 ","pages":"Article 131476"},"PeriodicalIF":5.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microstructure modulation strategy for the continuous uniform growth of quasi-columnar crystalline structure coatings based on high deposition rate powder 基于高沉积速率粉末的准柱状晶体结构涂层连续均匀生长的微结构调控策略
IF 5.3 2区 材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS Pub Date : 2024-10-30 DOI: 10.1016/j.surfcoat.2024.131535
Qing He, Jia-jun Wang, Yu-sheng Zhang, Xin-hui Li, Xiao-ming You, Shi-xing Wang, Li-kang Liang
Plasma spray-physical vapor deposition (PS-PVD) allows the preparation of quasi-columnar coatings with columnar crystalline branching and dendritic structures, resulting in long life and high-thermal insulation properties. However, the microstructural feature of the coating is also responsible for the significant difference in hardness and elastic modulus in the coating's growth direction, which has an impact on its resistance to thermal shock and high-temperature erosion. This study summarizes the influence of motion parameters on the coating microstructure by adjusting the relative motion parameters between the spray gun and the sample, and proposes a deposition modulation strategy for a quasi-columnar structure coating that can be continuously and uniformly grown by increasing the powder feeding gradient. The increase of relative motion velocity reduces the growth interruption caused by the re-nucleation on the surface of columnar crystals, and the liquid phase and nanoclusters increase after the gas phase concentration is gradually increased to saturation with the increase of powder delivered. The gas-phase diffusion growth mode can be maintained continuously because the jet has sufficient energy to maintain the substrate temperature at low powder feed rates. The preparation of coatings with uniform columnar crystal microstructure and mechanical properties was realized, while the thermal cycle life of NiCrAlYSi/8YSZ thermal barrier coatings at 1100 °C was significantly improved, up to 1350 h–1650 h, and the high-temperature erosion rate was significantly reduced relative to the atmospheric plasma spraying (APS) coatings, which was improved to a certain extent.
等离子喷涂-物理气相沉积(PS-PVD)可以制备具有柱状结晶分支和树枝状结构的准柱状涂层,从而获得长寿命和高隔热性能。然而,涂层的微观结构特征也是导致涂层在生长方向上的硬度和弹性模量存在显著差异的原因,这对涂层的抗热震性和抗高温侵蚀性产生了影响。本研究通过调整喷枪与试样之间的相对运动参数,总结了运动参数对涂层微观结构的影响,并提出了一种沉积调控策略,即通过增大送粉梯度,实现准柱状结构涂层的连续均匀生长。相对运动速度的增加减少了柱状晶体表面再成核引起的生长中断,随着粉末输送量的增加,气相浓度逐渐增加到饱和后,液相和纳米团簇也随之增加。气相扩散生长模式可以持续保持,因为喷流具有足够的能量,可以在较低的粉末进料速率下保持基底温度。实现了制备具有均匀柱状晶体微观结构和机械性能的涂层,同时显著提高了 NiCrAlYSi/8YSZ 热障涂层在 1100 ℃ 下的热循环寿命,可达 1350 h-1650 h,高温侵蚀率相对于大气等离子喷涂(APS)涂层显著降低,得到了一定程度的改善。
{"title":"Microstructure modulation strategy for the continuous uniform growth of quasi-columnar crystalline structure coatings based on high deposition rate powder","authors":"Qing He,&nbsp;Jia-jun Wang,&nbsp;Yu-sheng Zhang,&nbsp;Xin-hui Li,&nbsp;Xiao-ming You,&nbsp;Shi-xing Wang,&nbsp;Li-kang Liang","doi":"10.1016/j.surfcoat.2024.131535","DOIUrl":"10.1016/j.surfcoat.2024.131535","url":null,"abstract":"<div><div>Plasma spray-physical vapor deposition (PS-PVD) allows the preparation of quasi-columnar coatings with columnar crystalline branching and dendritic structures, resulting in long life and high-thermal insulation properties. However, the microstructural feature of the coating is also responsible for the significant difference in hardness and elastic modulus in the coating's growth direction, which has an impact on its resistance to thermal shock and high-temperature erosion. This study summarizes the influence of motion parameters on the coating microstructure by adjusting the relative motion parameters between the spray gun and the sample, and proposes a deposition modulation strategy for a quasi-columnar structure coating that can be continuously and uniformly grown by increasing the powder feeding gradient. The increase of relative motion velocity reduces the growth interruption caused by the re-nucleation on the surface of columnar crystals, and the liquid phase and nanoclusters increase after the gas phase concentration is gradually increased to saturation with the increase of powder delivered. The gas-phase diffusion growth mode can be maintained continuously because the jet has sufficient energy to maintain the substrate temperature at low powder feed rates. The preparation of coatings with uniform columnar crystal microstructure and mechanical properties was realized, while the thermal cycle life of NiCrAlYSi/8YSZ thermal barrier coatings at 1100 °C was significantly improved, up to 1350 h–1650 h, and the high-temperature erosion rate was significantly reduced relative to the atmospheric plasma spraying (APS) coatings, which was improved to a certain extent.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"494 ","pages":"Article 131535"},"PeriodicalIF":5.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Combinatorial synthesis of AlNi alloys by low-pressure cold spray deposition and post-laser alloying process 通过低压冷喷沉积和激光后合金化工艺组合合成铝镍合金
IF 5.3 2区 材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS Pub Date : 2024-10-30 DOI: 10.1016/j.surfcoat.2024.131542
Tanguy Lacondemine , Beatriz Puga , Rémy Kalmar , Manuel Fendler , Fanny Balbaud
Aluminum-Nickel (AlNi) alloys are of great interest due to their exceptional high-temperature wear and corrosion resistance, making them valuable in transport, energy, and materials processing applications. However, challenges in the production and shaping of these alloys, particularly as thick coatings, remain significant. This study introduces an innovative method for the high-throughput synthesis of AlNi coatings, utilizing a two-step process: low-pressure cold spray deposition followed by laser surface alloying. The combination of these two techniques not only improves the synthesis process but also opens avenues for exploring new material compositions with specific application requirements. This approach holds significant potential for accelerating the development and optimization of advanced coatings and multiphase compounds in applications such as repair and additive manufacturing.
Aluminum and nickel powders were co-sprayed to create coatings with controlled compositions ranging from 50Al50Ni to 10Al90Ni (wt%). Subsequent laser treatment induced in-situ alloying and homogenization, resulting in dense, uniform AlNi coatings. The microstructure and chemical composition were characterized using Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectroscopy (EDS), while X-ray Diffraction (XRD) identified the formation of various phases, including Al3Ni and AlNi3 phases. The process demonstrated effective alloying and microstructural homogeneity, with residual alumina present at the surface. Despite the presence of some microstructural defects, such as cracking, this method provides a robust foundation for further refinement and opens new possibilities for tailoring alloy properties through combinatorial cold spray and laser alloying techniques.
铝镍(AlNi)合金因其优异的高温耐磨性和耐腐蚀性而备受关注,在运输、能源和材料加工等应用领域具有重要价值。然而,这些合金的生产和成型,尤其是厚涂层的生产和成型,仍然面临着巨大的挑战。本研究介绍了一种高通量合成铝镍涂层的创新方法,该方法采用两步工艺:低压冷喷沉积,然后进行激光表面合金化。这两种技术的结合不仅改进了合成工艺,还为探索具有特定应用要求的新材料成分开辟了途径。铝粉和镍粉被共同喷涂成涂层,可控成分从 50Al50Ni 到 10Al90Ni(重量百分比)不等。随后的激光处理诱导了原位合金化和均匀化,产生了致密、均匀的铝镍涂层。使用扫描电子显微镜(SEM)和能量色散 X 射线光谱(EDS)对微观结构和化学成分进行了表征,而 X 射线衍射(XRD)则确定了各种相的形成,包括 Al3Ni 和 AlNi3 相。该工艺显示了有效的合金化和微观结构的均匀性,表面存在残余氧化铝。尽管存在裂纹等微观结构缺陷,但这种方法为进一步完善提供了坚实的基础,并为通过组合冷喷和激光合金化技术定制合金特性提供了新的可能性。
{"title":"Combinatorial synthesis of AlNi alloys by low-pressure cold spray deposition and post-laser alloying process","authors":"Tanguy Lacondemine ,&nbsp;Beatriz Puga ,&nbsp;Rémy Kalmar ,&nbsp;Manuel Fendler ,&nbsp;Fanny Balbaud","doi":"10.1016/j.surfcoat.2024.131542","DOIUrl":"10.1016/j.surfcoat.2024.131542","url":null,"abstract":"<div><div>Aluminum-Nickel (Al<img>Ni) alloys are of great interest due to their exceptional high-temperature wear and corrosion resistance, making them valuable in transport, energy, and materials processing applications. However, challenges in the production and shaping of these alloys, particularly as thick coatings, remain significant. This study introduces an innovative method for the high-throughput synthesis of Al<img>Ni coatings, utilizing a two-step process: low-pressure cold spray deposition followed by laser surface alloying. The combination of these two techniques not only improves the synthesis process but also opens avenues for exploring new material compositions with specific application requirements. This approach holds significant potential for accelerating the development and optimization of advanced coatings and multiphase compounds in applications such as repair and additive manufacturing.</div><div>Aluminum and nickel powders were co-sprayed to create coatings with controlled compositions ranging from 50Al<img>50Ni to 10Al<img>90Ni (wt%). Subsequent laser treatment induced in-situ alloying and homogenization, resulting in dense, uniform Al<img>Ni coatings. The microstructure and chemical composition were characterized using Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectroscopy (EDS), while X-ray Diffraction (XRD) identified the formation of various phases, including Al<sub>3</sub>Ni and AlNi<sub>3</sub> phases. The process demonstrated effective alloying and microstructural homogeneity, with residual alumina present at the surface. Despite the presence of some microstructural defects, such as cracking, this method provides a robust foundation for further refinement and opens new possibilities for tailoring alloy properties through combinatorial cold spray and laser alloying techniques.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"494 ","pages":"Article 131542"},"PeriodicalIF":5.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142662219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Surface & Coatings Technology
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1