Surface & Coatings Technology最新文献_第7页

Mechanical, tribological and corrosion performance of uncoated and pre-coated TiO2 particles incorporated NiP coatings 未涂覆和预涂覆的含有NiP涂层的TiO2颗粒的机械、摩擦学和腐蚀性能

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology

Pub Date : 2026-03-01 Epub Date: 2026-01-29 DOI: 10.1016/j.surfcoat.2026.133245

Sourav Sarkar , Supriyo Roy , Chinmaya Kumar Sahoo , Saikat Ranjan Maity

Improving the interfacial bonding between ceramic particles within NiP matrix remained a challenging task to engineers. Loosening of ceramic particle during sliding test is a common problem and has not been addressed extensively till now to the best of author's knowledge. Thus, in the present investigation TiO₂ reinforced NiP coating using electroless route has been successfully done. The study investigates the influence of incorporating uncoated TiO₂ particles and TiO₂ particles pre-coated with NiP and Cu (core-shell structures) into electroless NiP matrix. The pre-coated particles were analysed through EDS and SEM. Both uncoated and pre-coated TiO₂ were separately incorporated into the NiP matrix, and the resulting coatings were heat treated (annealing) at 400 °C. Structural and morphological characterisations were performed using SEM, EDS, and XRD, while mechanical, tribological, and electrochemical performances were systematically evaluated. Results indicated that the incorporation of pre-coated TiO₂ particles enhances ceramic particle dispersion and retention within the NiP matrix, leading to modified microstructural features. Compared with conventional Ni-P-TiO₂ and Ni-P-Cu-TiO₂ composites, coatings containing pre-coated particles exhibited superior hardness, reduced friction and wear, and significantly improved corrosion resistance. The NiP pre-coated TiO₂ matrix showed the maximum hardness of 1258 ± 22 HV. Very obviously, the same coating also showed minimum wear rate of 3.26 ± 0.22 mgN⁻¹ m⁻¹ in terms of mass loss and 0.000427 ± 0.0000126 cm³N⁻¹ m⁻¹ in terms of volume loss. On the other hand, Cu pre-coated TiO₂ matrix showed the best corrosion resistance.

改善NiP基体中陶瓷颗粒之间的界面结合仍然是工程师面临的一项具有挑战性的任务。陶瓷颗粒在滑动试验中的松动是一个普遍存在的问题，据笔者所知，目前还没有得到广泛的解决。因此，本研究成功地采用化学方法制备了TiO2增强NiP涂层。研究了未包覆的TiO2粒子和预包覆了NiP和Cu（核壳结构）的TiO2粒子对化学NiP基体的影响。通过EDS和SEM对预涂颗粒进行了分析。将未包覆和预包覆的TiO2分别掺入NiP基体中，并在400℃下进行热处理（退火）。利用SEM、EDS和XRD对材料进行了结构和形态表征，并对材料的力学、摩擦学和电化学性能进行了系统的评价。结果表明，预包覆TiO2颗粒的掺入增强了陶瓷颗粒在NiP基体中的分散和保留，从而改变了微观结构特征。与传统的Ni-P-TiO2和Ni-P-Cu-TiO2复合材料相比，预包覆颗粒涂层具有更高的硬度，降低了摩擦磨损，显著提高了耐蚀性。NiP预包覆的TiO2基体硬度最高可达1258±22 HV。非常明显，同一涂层的最小磨损率为3.26±0.22 mgN−1 m−1，质量损失为3.26±0.22 mgN−1 m−1，体积损失为0.000427±0.0000126 cm3N−1 m−1。另一方面，Cu预包覆TiO2基体的耐蚀性最好。

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引用次数: 0

Microstructures and tribological performances of laser-clad AlCrTi0.5/xTiC composite coatings on pure Ti sheet 纯钛板上激光熔覆AlCrTi0.5/xTiC复合涂层的组织与摩擦学性能

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology

Pub Date : 2026-03-01 Epub Date: 2026-01-25 DOI: 10.1016/j.surfcoat.2026.133224

Zhihao Li , Min Zhang , Linjiang Chai , Jingyi Zhang , Yu Yang , Jiangping Liu , Dongsheng Wang , Renju Cheng

In this work, high-performance AlCrTi_0.5/xTiC (x = 0, 5, 10 and 15) composite coatings are successfully fabricated on pure Ti substrate through laser cladding. Systematic microstructural characterizations reveal that these coatings predominantly consist of β-Ti matrix and a number of second phase particles (SPPs). With increasing TiC additions, the morphology of the SPPs gradually evolves from spherical to petal-like or dendritic shapes. Due to synergistic effect of the Marangoni convection and the Stokes flow dynamics during the laser process, these SPPs prefer to be aligned in streamlined patterns in the molten pool. All the coatings show substantially improved hardness and wear resistance compared to the substrate. While the 15TiC coating exhibits the highest microhardness due to pronounced precipitation strengthening, the 10TiC coating exhibits the best wear resistance despite its slightly lower hardness. Detailed microstructural analyses suggest that the oversized SPPs in the 15TiC coating could induce premature spalling during reciprocating friction tests. The detached SPPs will act as third-body abrasives, leading to undesired three-body wear and thereby slightly degraded wear performance, compared to the 10TiC coating.

通过激光熔覆，在纯钛基体上成功制备了高性能AlCrTi0.5/xTiC （x = 0,5,10和15）复合涂层。系统的微观结构表征表明，这些涂层主要由β-Ti基体和一些第二相颗粒（SPPs）组成。随着TiC添加量的增加，SPPs的形貌逐渐由球形演变为花瓣状或枝晶状。由于激光过程中马兰戈尼对流和斯托克斯流动力学的协同作用，这些spp在熔池中更倾向于以流线型排列。与基体相比，所有涂层的硬度和耐磨性都得到了显著提高。15TiC涂层由于明显的析出强化而表现出最高的显微硬度，而10TiC涂层虽然硬度略低，但却表现出最好的耐磨性。详细的显微组织分析表明，在往复摩擦试验中，15TiC涂层中超大的spp可能导致涂层过早剥落。与10TiC涂层相比，分离的spp将充当第三体磨料，导致不希望的三体磨损，从而略微降低磨损性能。

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引用次数: 0

Silicon-induced self-healing in YSZ thermal barrier coatings with enhanced thermal shock and hot-corrosion resistance YSZ热障涂层中硅诱导的自愈，增强了热冲击和耐热腐蚀性能

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology

Pub Date : 2026-03-01 Epub Date: 2026-01-19 DOI: 10.1016/j.surfcoat.2026.133204

A. Khazaee , S.M.M. Hadavi , N. NayebPashaee

This study investigates the improvement of thermal shock resistance and hot corrosion performance in yttria-stabilized zirconia (YSZ)-based thermal barrier coatings (TBCs) by incorporating silicon (Si) and developing multi-layered coating architectures. Coatings were applied through atmospheric plasma spraying (APS), by which three distinct coating designs were evaluated: a conventional YSZ coating, a single-layer self-healing coating (YSZ + 13 wt% Si), and a double-layer self-healing coating (8YSZ + 7 wt% Si / 8YSZ + 13 wt% Si). The addition of silicon promoted the formation of silica (SiO₂) and zircon silicate (ZrSiO₄) phases upon oxidation, providing an autonomous self-healing mechanism that seals microcracks and improves the structural integrity and durability of the coatings during thermal cycling. Microstructural analysis revealed that the double-layer self-healing coating exhibited superior damage tolerance, with enhanced stress accommodation and more effective crack healing compared to the single-layer self-healing coating. Thermal shock testing revealed that the multi-layer architecture outperformed the single-layer coating, exhibiting reduced spallation and crack propagation. Additionally, hot corrosion tests showed that the silicon-enriched coatings offered improved protection against degradation, with the double-layer self-healing system providing the highest corrosion resistance. This study highlights the crucial role of silicon concentration and coating architecture in optimizing the self-healing capabilities and overall performance of YSZ-based TBCs for advanced high-temperature applications in the turbine and aerospace industries.

本研究通过添加硅（Si）和开发多层涂层结构，研究了钇稳定氧化锆（YSZ）基热障涂层（tbc）的抗热震性能和热腐蚀性能。涂层通过大气等离子喷涂（APS）进行，通过该方法评估了三种不同的涂层设计：传统的YSZ涂层，单层自修复涂层（YSZ + 13% Si）和双层自修复涂层（8YSZ + 7% Si / 8YSZ + 13% Si）。硅的加入促进了氧化过程中二氧化硅（SiO₂）和锆硅（ZrSiO₄）相的形成，提供了一种自主自愈机制，可以密封微裂纹，提高涂层在热循环过程中的结构完整性和耐久性。微观结构分析表明，与单层自愈涂层相比，双层自愈涂层具有更强的损伤容忍度、更强的应力调节能力和更有效的裂纹愈合能力。热冲击测试表明，多层结构优于单层涂层，表现出更少的剥落和裂纹扩展。此外，热腐蚀测试表明，富硅涂层提供了更好的抗降解保护，双层自修复系统提供了最高的耐腐蚀性。这项研究强调了硅浓度和涂层结构在优化基于ysz的tbc的自修复能力和整体性能方面的关键作用，该tbc可用于涡轮和航空航天工业的高级高温应用。

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引用次数: 0

Investigation on plasma nitriding and nitrocarburizing of a continuous cooling bainitic steel 连续冷却贝氏体钢等离子体渗氮和氮碳共渗的研究

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology

Pub Date : 2026-02-15 Epub Date: 2026-01-07 DOI: 10.1016/j.surfcoat.2026.133171

João Vitor Piovesan Dalla NORA , Douglas Rodrigues de RODRIGUES , Morvan da Silva FRANCO , Vinicius Waechter DIAS , Fernando Michelon MARQUES , Rafael Menezes NUNES , Alexandre da Silva ROCHA

Plasma nitriding of continuous cooling bainitic steel DIN 18 MnCrSiMo6–4 has been previously studied to enhance its surface properties without compromising core hardness. However, the potential of plasma nitrocarburizing for this specific advanced steel remains largely unexplored, despite its promise of superior tribological performance. In this context, this article aims to evaluate the response to plasma nitrocarburizing of DIN 18 MnCrSiMo6–4 continuously cooled bainitic steel compared to plasma nitriding. Plasma thermochemical treatments were carried out in N₂ - H₂ - CH₄ atmosphere, varying CH₄ content from 0 vol%, for plasma nitriding, to 3 and 5 vol% for plasma ferritic nitrocarburizing. The N₂ content was fixed at 75 vol% and H₂ was used in balance for all treatments. Microstructure, roughness, hardness, phase and micro-abrasive wear resistance of the samples were investigated after plasma treatments. The experimental findings indicate a decrease in the thickness of the white layer, and an enhancement in surface hardness and roughness as the CH₄ content increases. Furthermore, there is an increased formation of Fe₂₃N phase, which correlates with an elevated concentration of CH₄ in the system. Plasma nitrocarburizing with 3 vol% CH₄ exhibited reduced worn volume and minor crater depths than white layer thickness for the longest micro-abrasive tests. Plasma nitrocarburizing significantly improved wear resistance while preserving core hardness of DIN 18MnCrSiMo6–4 bainitic steel surface properties.

连续冷却贝氏体钢DIN 18mncrsimo6 - 4的等离子体渗氮已经被研究，以提高其表面性能而不影响核心硬度。然而，等离子体氮碳共渗对这种特殊高级钢的潜力仍未得到充分开发，尽管它具有优越的摩擦学性能。在此背景下，本文旨在评估din18 MnCrSiMo6-4连续冷却贝氏体钢与等离子渗氮相比对等离子氮化的响应。等离子体热化学处理在N2 - H2 - CH4气氛中进行，CH4含量从0 vol%（等离子体渗氮）到3 vol%和5 vol%（等离子体铁素体氮碳共渗）。N2含量固定为75 vol%，各处理均平衡使用H2。对等离子体处理后试样的显微组织、粗糙度、硬度、物相及微磨粒耐磨性进行了研究。实验结果表明，随着CH4含量的增加，白层厚度减小，表面硬度和粗糙度增大。此外，Fe23N相的形成增加，这与体系中CH4浓度的升高有关。3 vol% CH4等离子体氮碳共渗在最长微磨粒试验中表现出比白层厚度更小的磨损体积和较小的坑深。等离子体氮碳共渗处理显著提高了DIN 18MnCrSiMo6-4贝氏体钢的耐磨性，同时保持了钢芯硬度的表面性能。

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引用次数: 0

Influence of thermal barrier coating on the stress rupture life of thin-walled Ni-based single crystal superalloy 热障涂层对薄壁ni基单晶高温合金应力断裂寿命的影响

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology

Pub Date : 2026-02-15 Epub Date: 2026-01-10 DOI: 10.1016/j.surfcoat.2026.133169

Jing Liu , Li Wang , Minghan Yu , Liping Xu , Shiling Min , Di Wang , Xiangwei Jiang , Jiasheng Dong , Langhong Lou

Thermal barrier coatings (TBCs) are widely used on advanced thin-walled Ni-based single crystal (SX) blades. In this study, the influence of TBC on the stress rupture life of thin-walled Ni-based SX superalloy was investigated at 1100 °C/120 MPa. For 0.5 mm wall thickness (T_0.5) specimens, the average stress rupture life of bare specimens (48 h) was 43.8% shorter than that of the coated specimens (68 h). No significant difference was found between the T_1.0 bare specimens (111 h) and coated specimens (118 h). In contrast, for the T_1.5 specimens, the bare specimens (186 h) exhibited a 45.2% longer life than the coated specimens (102 h). In T_0.5 specimens, TBC delays the plastic deformation of the substrate and increases the initial load-bearing area. These effects collectively slow oxidation and delay both the degradation of the γ/γ' phase and the initiation and propagation of cracks, ultimately leading to a longer stress rupture life of the coated specimens. In T_1.0 specimens, TBC delays the plastic deformation of the substrate and increases the initial load-bearing area, while the severe TBC oxidation and inhomogeneous macroscopic plastic deformation accelerated by the TBC spallation promote degradation of the γ/γ' phase as well as the initiation and propagation of cracks. As a result, the stress rupture lives of the T_1.0 bare and coated specimens become comparable. Conversely, in T_1.5 specimens, the TBC has a limited effect on delaying deformation and increasing the initial effective load-bearing area. However, TBC degradation and spallation accelerated inhomogeneous macroscopic plastic deformation of substrate. These synergistic effects drastically reduce the stress rupture life of the coated specimens. Furthermore, the TBC damage mechanism is strongly thickness-dependent. These findings provide valuable insights for structural optimization and damage analysis of advanced turbine blades.

热障涂层广泛应用于高级薄壁镍基单晶（SX）叶片。在1100℃/120 MPa下，研究了TBC对ni基SX薄壁高温合金应力断裂寿命的影响。对于壁厚为0.5 mm （T0.5）的试样，裸露试样的平均应力断裂寿命（48 h）比涂层试样的平均应力断裂寿命（68 h）短43.8%。T1.0裸体（111 h）与包覆体（118 h）无显著差异。相比之下，对于T1.5的样品，裸露的样品（186 h）比涂覆的样品（102 h）寿命长45.2%。在T0.5试样中，TBC延缓了基体的塑性变形，增大了初始承载面积。这些效应共同减缓了氧化，延缓了γ/γ′相的降解以及裂纹的产生和扩展，最终导致涂层试样具有更长的应力断裂寿命。在T1.0试样中，TBC延缓了基体的塑性变形，增加了基体的初始承载面积，而TBC严重的氧化和TBC剥落加速的不均匀宏观塑性变形促进了γ/γ′相的降解，促进了裂纹的萌生和扩展。结果表明，T1.0裸露和涂层试样的应力断裂寿命具有可比性。相反，在T1.5试件中，TBC对延迟变形和增加初始有效承载面积的作用有限。而TBC的降解和剥落加速了基体的非均匀宏观塑性变形。这些协同效应大大降低了涂层试样的应力断裂寿命。此外，TBC损伤机制与厚度密切相关。这些发现为先进涡轮叶片的结构优化和损伤分析提供了有价值的见解。

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引用次数: 0

The effect of varying substrate bias voltages on the performance of AlCrNbSiTi coatings and its strengthening mechanism 不同衬底偏压对AlCrNbSiTi涂层性能的影响及其强化机理

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology

Pub Date : 2026-02-15 Epub Date: 2026-01-13 DOI: 10.1016/j.surfcoat.2026.133194

Jie Liu , Yanghui Jiang , Yi Wang , Zhoufeng Zhao , Vasiliy Pelenovich , Xiaomei Zeng , Yanming Chen , Jun Zhang , Bing Yang

The performance of conventional protective coatings is often constrained by the intrinsic trade-off between hardness and toughness. While high-entropy alloy coatings present a promising alternative, the relationship between their microstructure and properties, along with the underlying strengthening mechanisms, remains insufficiently elucidated. In this study, the high-hardness AlCrNbSiTi coatings were fabricated by arc ion plating under different bias voltages, achieving synergistic optimization of hardness and toughness. The microstructure, phase composition, mechanical properties, and high-temperature oxidation behavior of the AlCrNbSiTi coatings were systematically investigated. The cross-sectional microstructure of the coatings exhibited progressive densification with increasing bias voltages. The coating exhibits the amorphous/nanocrystalline composite structure, which aligns consistently with predictions derived from phase formation parameters. The coatings deposited at −50 V bias exhibited optimal hardness and wear resistance, with values of 26.6 GPa and 1.4 × 10⁻⁶ mm³/N·m, respectively. Furthermore, the coatings showed exceptional high-temperature oxidation resistance, maintaining effective substrate protection even after exposure at 1000 °C. The results demonstrate that the AlCrNbSiTi coatings is a promising protective coating with broad industrial application prospects.

传统防护涂层的性能常常受到硬度和韧性之间内在权衡的制约。虽然高熵合金涂层是一种很有前途的选择，但它们的微观结构和性能之间的关系以及潜在的强化机制仍然没有得到充分的阐明。本研究采用电弧离子镀的方法，在不同的偏置电压下制备了高硬度的AlCrNbSiTi涂层，实现了硬度和韧性的协同优化。系统地研究了AlCrNbSiTi涂层的显微组织、相组成、力学性能和高温氧化行为。随着偏置电压的增加，涂层的截面组织逐渐致密化。涂层呈现出非晶/纳米晶复合结构，这与相形成参数的预测一致。在−50 V偏压下沉积的涂层具有最佳的硬度和耐磨性，硬度和耐磨性分别为26.6 GPa和1.4 × 10−6 mm3/N·m。此外，涂层表现出优异的高温抗氧化性，即使在1000°C下暴露也能保持有效的基材保护。结果表明，AlCrNbSiTi涂层是一种很有前途的防护涂层，具有广阔的工业应用前景。

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引用次数: 0

Impact of nitrogen fraction in N2-H2 plasma nitrocarburizing on mechanical, tribological, and corrosion performance of AISI 316L N2-H2等离子体氮碳共渗中氮含量对AISI 316L合金力学、摩擦学和腐蚀性能的影响

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology

Pub Date : 2026-02-15 Epub Date: 2026-01-09 DOI: 10.1016/j.surfcoat.2026.133172

Anke Dalke , Minh Ngoc Le , Saeed M. Jafarpour , Sonia P. Brühl , Horst Biermann

This study investigates how the nitrogen fraction (f_N) in N₂-H₂ feed gas affects the microstructure, mechanical, wear and corrosion properties of AISI 316L stainless steel treated at 460 °C for 5 h by active screen plasma nitrocarburizing (ASPNC) using a plasma-activated carbon screen as the carbon source. Investigation includes glow discharge optical emission spectroscopy (GDOES), X-ray diffraction (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM) to characterize the elemental composition, phase composition, and surface topography of the expanded austenite layers across five different nitrogen fractions (0 ≤ f_N ≤ 1). A transitional regime at f_N = 0.5 showed maximum nitrogen uptake, minimal carbon content, and the thickest expanded austenite layer, though accompanied by highest defect density. Mechanical testing indicate that hardness and wear resistance reach a peak at f_N = 0.5 (Martens hardness HM = 3.27 GPa), while higher nitrogen fractions (f_N ≥ 0.9) lead to decreased hardness due to nitride-induced brittleness. Electrochemical polarization in 0.05 M H₂SO₄ reveal that corrosion resistance deteriorates with increasing f_N, particularly at f_N = 0.5, where nitride precipitates, grain boundary defects, and chromium depletion impair passive film stability. Treatments at low nitrogen fraction (f_N ≤ 0.1) offer an optimal balance between corrosion resistance and mechanical performance, suitable for applications requiring both wear and corrosion protection. In contrast, high nitrogen conditions (f_N ≥ 0.5) enhance wear resistance but are susceptible to corrosion, emphasizing the importance of tailoring plasma parameters to optimize AISI 316L performance for specific industrial applications.

本研究以等离子体活性炭筛为碳源，研究了n2 - h2原料气中氮气组分（fN）对aisi316l不锈钢460℃、5 h活性筛等离子体氮碳共渗处理（ASPNC）的微观组织、力学性能、磨损性能和腐蚀性能的影响。利用辉光发射光谱（GDOES）、x射线衍射（XRD）、扫描电子显微镜（SEM）和原子力显微镜（AFM）表征了5种不同氮组分（0≤fN≤1）下膨胀奥氏体层的元素组成、相组成和表面形貌。当fN = 0.5时，合金的氮吸收量最大，碳含量最低，膨胀奥氏体层最厚，但缺陷密度最高。力学测试表明，硬度和耐磨性在fN = 0.5时达到峰值（马氏硬度HM = 3.27 GPa），较高的氮含量（fN≥0.9）导致硬度下降。在0.05 M H₂SO _4中的电化学极化表明，随着fN的增加，钝化膜的耐蚀性下降，特别是当fN = 0.5时，氮化物析出、晶界缺陷和铬的损耗影响了钝化膜的稳定性。低氮含量（fN≤0.1）处理提供了耐腐蚀性和机械性能之间的最佳平衡，适用于需要磨损和腐蚀保护的应用。相比之下，高氮条件（fN≥0.5）增强了耐磨性，但容易受到腐蚀，强调了定制等离子体参数以优化AISI 316L特定工业应用性能的重要性。

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引用次数: 0

Suppressing hot salt corrosion fatigue damage in TC11 alloy at 500 °C via ultrasonic surface rolling 超声表面轧制抑制500℃下TC11合金热盐腐蚀疲劳损伤

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology

Pub Date : 2026-02-15 Epub Date: 2026-01-13 DOI: 10.1016/j.surfcoat.2026.133177

Weidong Zhao , Hailan Shi , Daoxin Liu , Xiaohua Zhang , Jingwei Zhao

This paper mainly investigated the influence laws of ultrasonic surface rolling processing (USRP) on the surface integrity and hot salt corrosion fatigue (HSCF) of TC11 titanium alloy. All USRP treatments significantly enhanced HSCF resistance, increasing the fatigue limit by 10.26%, 28.21%, and 32.05% after 1, 12, and 24 passes USRP, respectively, compared to the base material (390 MPa). The amorphous-nanocrystalline surface layer, increased dislocation density, and deep compressive residual stress (CRS) field after USRP treatment worked together to resist hot salt corrosion and hydrogen embrittlement, effectively slowing crack initiation and growth. Meanwhile, 24 USRP rolls under low stress conditions show better performance, which was more stable and deeper CRS reduced the dominant role of corrosion; while 12 USRP rolls under high stress conditions perform better because their surface damage was smaller and the sensitivity to stress relaxation was reduced.

本文主要研究了超声表面轧制加工（USRP）对TC11钛合金表面完整性和热盐腐蚀疲劳的影响规律。与基材（390 MPa）相比，所有USRP处理均显著提高了抗HSCF性能，在USRP通过1次、12次和24次后，其疲劳极限分别提高了10.26%、28.21%和32.05%。USRP处理后，非晶纳米晶表面层、位错密度增加和深压缩残余应力（CRS）场共同作用，抵抗热盐腐蚀和氢脆，有效减缓裂纹的萌生和扩展。同时，在低应力条件下，24个USRP轧辊表现出更好的性能，更稳定，更深的CRS降低了腐蚀的主导作用；而在高应力条件下，12个USRP辊的性能更好，因为它们的表面损伤更小，对应力松弛的敏感性降低。

引用次数: 0

Study on the phase structure and comprehensive properties of ReNx coatings prepared by magnetron sputtering 磁控溅射制备ReNx涂层的相结构和综合性能研究

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology

Pub Date : 2026-02-15 Epub Date: 2026-01-10 DOI: 10.1016/j.surfcoat.2026.133187

Yuan Liu , Feng Xu , Wang Ma , Qiu-zhi Xu , Hui-lun Cheng , Xian-qing Shi , Wen-xuan Zhao , Cheng-zuan Gao , Dun-wen Zuo

This study focuses on rhenium nitride (ReNx) coatings (x = 0.37–0.50) deposited on YG8 cemented carbide via magnetron sputtering, investigating nitrogen content's regulation of their microstructural evolution and comprehensive properties. By adjusting the N₂/Ar flow ratio (S1:1:1 to S4:1:4), coatings with varying nitrogen contents were prepared. Characterizations via X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), nanoindentation, tribological/electrochemical tests, and first-principles calculations confirm all coatings exhibit a face-centered cubic (fcc) ReNx phase. High nitrogen (S1, x = 0.50) promotes dense, low-roughness (Sa (surface roughness parameter) =1.43 nm) microstructures via lattice contraction and strong ReN bonding; low nitrogen (S4, x = 0.37) causes metallic Re accumulation, increasing roughness (Sa = 1.75 nm) and deposition rate. Mechanically, hardness peaks at 27.66 GPa for S3 (x = 0.40)—supported by TEM observations of dense columnar grains, dislocation walls, and refined grains (19.7 nm)—while elastic modulus rises from 537.0 GPa (S1) to 589.5 GPa (S4) with decreasing nitrogen. Tribologically, minimum friction coefficient (0.1) and wear rate (9.0 × 10⁻⁸ mm³/(N·m), S2) come from tribo-induced ReO₂/ReO₃ lubricants and dense structure. Electrochemically, S1 shows corrosion current density (1.93 × 10⁻⁶ A/cm²) two orders lower than YG8 (2.23 × 10⁻⁴ A/cm²) due to the dense structure's barrier effect. This work clarifies nitrogen-driven structure-property relationships of ReNx coatings, supporting their optimization for friction-corrosion coupled extreme environments.

本研究以磁控溅射沉积在YG8硬质合金上的氮化铼（ReNx）涂层（x = 0.37 ~ 0.50）为研究对象，研究氮含量对其显微组织演变和综合性能的影响。通过调整N2/Ar流量比（S1:1:1 ~ S4:1:4），制备出不同氮含量的涂层。通过x射线衍射（XRD）、x射线光电子能谱（XPS）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、纳米压痕、摩擦学/电化学测试和第一性原理计算的表征证实，所有涂层都表现出面心立方（fcc） ReNx相。高氮（S1, x = 0.50）通过晶格收缩和强ReN键形成致密、低粗糙度（Sa（表面粗糙度参数）=1.43 nm）的微观结构；低氮（S4, x = 0.37）导致金属Re积累，粗糙度（Sa = 1.75 nm）增大，沉积速率加快。力学上，S3 （x = 0.40）的硬度峰值为27.66 GPa（透射电镜观察到致密柱状晶粒、位错壁和细化晶粒（19.7 nm）），而弹性模量随着氮的减少从537.0 GPa （S1）上升到589.5 GPa （S4）。摩擦学上，最小摩擦系数（0.1）和磨损率（9.0 × 10−8 mm3/(N·m), S2）来自摩擦诱导的ReO2/ReO3润滑油和致密的结构。电化学上，由于致密结构的势垒效应，S1的腐蚀电流密度为1.93 × 10−6 A/cm2，比YG8的腐蚀电流密度（2.23 × 10−4 A/cm2）低2个数量级。这项工作阐明了氮驱动的ReNx涂层的结构-性能关系，支持其在摩擦腐蚀耦合极端环境下的优化。

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Effects of Si content on mechanical properties and corrosion resistance of cosputtered (TiZrHfTaSi)Nx films Si含量对溅射（TiZrHfTaSi）Nx薄膜力学性能和耐蚀性的影响

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology

Pub Date : 2026-02-15 Epub Date: 2026-01-10 DOI: 10.1016/j.surfcoat.2026.133188

Yung-I Chen , Yan-Zhi Liao , Li-Chun Chang

This study investigates the influences of Si content on the characteristics of (TiZrHfTaSi)N_x films fabricated through reactive magnetron cosputtering. The results indicate that a Si content of 8.4 at.% refines the grain size, ascribing to the columnar structure formation, enhancing the film's hardness and elastic modulus to 30.9 and 293 GPa, respectively, but revealing insufficient wear resistance and moderate corrosion resistance. Incorporating the Si content to 18.4 at.% resulted in enhanced wear and corrosion resistances, but the deterioration of mechanical properties was also observed due to the increased amount of an amorphous SiN_x phase. A combination of high mechanical properties and corrosion resistance was obtained for the (TiZrHfTaSi)N_x film with an appropriate Si content of 11.7 at.% in this investigation.

研究了Si含量对反应磁控溅射制备（TiZrHfTaSi）Nx薄膜特性的影响。结果表明：a的Si含量为8.4 at。%细化了膜的晶粒尺寸，使膜的硬度和弹性模量分别提高到30.9和293 GPa，但耐磨性和耐蚀性不足。含硅量为18.4 at。%提高了耐磨损和耐腐蚀性能，但由于非晶态SiNx相的增加，也观察到机械性能的恶化。当Si含量为11.7 at时，（TiZrHfTaSi）Nx薄膜具有较高的机械性能和耐腐蚀性。%在这次调查中。

引用次数: 0