Journal of Alloys and Metallurgical Systems最新文献_第6页

Microstructures evolution and enhanced performance of ZK60 magnesium alloys manufactured by multi-path asynchronous warm rolling 多径异步热轧ZK60镁合金组织演变及性能增强

Journal of Alloys and Metallurgical Systems

Pub Date : 2025-06-01 Epub Date: 2025-04-08 DOI: 10.1016/j.jalmes.2025.100180

Haixin Zou , Wangxing Zhou , Dawen Liu , Peng Jiang

Magnesium (Mg) alloy is one of the most promising lightweight structural materials. Rolling is the main method of efficient mass production of Mg alloy sheets. However, the limited number of slip systems of Mg alloys with hexagonal close packed (HCP) crystal structure leads to poor deformation properties, strong basal texture formed during unidirectional rolling and severe anisotropy of the sheets. The new technology of Multi-Path Asynchronous Warm Rolling (MPAWR) is used in the manufacture of ZK60 Mg alloy sheets in order to solve these problems. The results show that under the same rolling path, the number of twins in the microstructures of ZK60 alloys decreases with the increase of roll speed ratio (RSR), the grain size decreases and the uniformity increases. At the same RSR, the number of twins in ZK60 alloys increases first and then decreases with the change of rolling path (A→B→C), and the grain size decreases and the uniformity increases. The dynamic recrystallization of ZK60 alloys during warm rolling can be promoted by the change of rolling path (A→B→C) and the increase of different RSR, resulting in the increase of grain refinement, uniformity and random orientation (the weakening of basal texture intensity). Compared with the synchronous unidirectional rolling and heat treatment process, MPAWR process can significantly improve the strength, plasticity and rolling deformation efficiency of the alloys at the same time, and effectively reduce the anisotropy of the alloy’s properties.

镁（Mg）合金是最有前途的轻量化结构材料之一。轧制是大批量高效生产镁合金薄板的主要方法。然而，由于六方紧密堆积（HCP）晶体结构的镁合金滑移系统数量有限，导致其变形性能差，单向轧制时形成的基底织构较强，板料各向异性严重。为了解决这些问题，在ZK60镁合金薄板生产中采用了多径异步热轧新技术。结果表明：在相同轧制路径下，随着轧制速比的增大，ZK60合金组织中的孪晶数量减少，晶粒尺寸减小，均匀性提高；在相同RSR下，随着轧制路径的变化（A→B→C）， ZK60合金中孪晶数量先增加后减少，晶粒尺寸减小，均匀性提高。轧制路径的改变（A→B→C）和不同RSR的增加可以促进ZK60合金在温轧过程中的动态再结晶，导致晶粒细化、均匀性和随机取向增加（基底织构强度减弱）。与同步单向轧制和热处理工艺相比，MPAWR工艺可同时显著提高合金的强度、塑性和轧制变形效率，并有效降低合金性能的各向异性。

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引用次数: 0

A new experimental result indicating 3 separate phase fields of ε, ε1, ε2 and the estimation of diffusion coefficients in the Mn–Zn system 新的实验结果表明，在Mn-Zn体系中ε、ε1、ε2有3个独立的相场和扩散系数的估计

Journal of Alloys and Metallurgical Systems

Pub Date : 2025-06-01 Epub Date: 2025-04-15 DOI: 10.1016/j.jalmes.2025.100183

Shubhangini Yadav, Varun A. Baheti

The Mn–Zn system, technologically crucial for galvanized Mn–containing steels and potential ZnMn–based biomaterials, has been studied using the conventional diffusion couple technique. The first experimental evidence has been presented to indicate the presence of 3 separate phases, as

ε

,

ε

₁ and

ε

₂, together in the interdiffusion zone. By taking advantage of local equilibrium present at interphase interfaces in a diffusion couple, the controversial

ε

–phase region has been resolved after almost more than 6 decades. Incorporating new experimental results of 3 separate phases could be beneficial in refining the present thermodynamic optimization of the Mn–Zn system. Furthermore, MnZn₉ and MnZn₁₃ have also grown in the Mn/Zn diffusion couple, such that there are 5 distinct phase layers, including

ε

,

ε

₁ and

ε

₂. Diffusion parameters such as integrated diffusion coefficients and the ratio of tracer diffusivities, which are currently unavailable, are also determined considering ideal molar volumes. It helps to understand the atomic mechanism of diffusion and the probable defects present in phase(s).

锰锌系统是镀锌含锰钢和潜在的锌基生物材料的关键技术，已经使用传统的扩散偶联技术进行了研究。首次得到了在扩散区存在ε、ε1和ε2三个相的实验证据。利用扩散偶相界面存在的局部平衡，在近60多年后解决了有争议的ε -相区。引入新的3相实验结果将有助于改进目前Mn-Zn体系的热力学优化。MnZn9和MnZn13也在Mn/Zn扩散偶中生长，形成ε、ε1和ε2等5个相层。扩散参数，如积分扩散系数和示踪剂扩散率比，目前无法获得，也考虑理想摩尔体积确定。它有助于理解扩散的原子机制和相中可能存在的缺陷。

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引用次数: 0

Development of cost-effective scrap-tolerant bulk-scale high entropy alloys 具有成本效益的耐报废大尺寸高熵合金的研制

Journal of Alloys and Metallurgical Systems

Pub Date : 2025-06-01 Epub Date: 2025-05-26 DOI: 10.1016/j.jalmes.2025.100190

Rahul Kumar , Kamlesh Sahoo , Manish Kumar Singh , Rahul M R , Ashok Kamaraj

Developing bulk high entropy alloys (HEAs) with good strength and ductility combinations is challenging. Many of the currently reported HEAs are prepared from pure metals. The current study selected a multicomponent CoCrFeMn alloy and prepared it using scrap, ferroalloys, and pure elements. Further improvement in the properties of as-cast alloys is done by minute solute addition. The Thermo-Calc® simulation studies identified the maximum amount of minute solute elements that can be added without any new phase formation. The studied master alloy and modified compositions show a multiphase structure with FCC and HCP phases. The detailed microstructural analysis confirms that the secondary dendritic arm spacing was reduced while adding trace elements, and Cu-containing alloys showed a reduction of ∼44.44 %. The effect of the casting condition was studied by varying the heat transfer condition via different mould geometries. The mechanical properties, such as the tensile test and Vickers microhardness, show remarkable improvement with minute additions of solutes and by varying heat transfer conditions. The master alloy and Cu containing alloy show a maximum strength of ∼429 MPa and ∼562 MPa, respectively. The Cu-containing alloy shows an outstanding strength-ductility combination, and the detailed TEM-STEM analysis confirms the formation of Fe-rich clusters and Cu-rich phases. The current study shows a cost reduction of ∼1/10 compared with the alloys formed by pure elements.

开发具有良好强度和延展性的大块高熵合金（HEAs）是一项具有挑战性的工作。目前报道的HEAs大都是由纯金属制备的。本研究选择了一种多组分CoCrFeMn合金，采用废铁、铁合金和纯元素制备。进一步改善铸态合金的性能是通过微量添加溶质来实现的。thermal - calc®模拟研究确定了可以在不形成任何新相的情况下添加的微量溶质元素的最大数量。所研究的中间合金和改性成分均为FCC相和HCP相的多相结构。详细的显微组织分析证实，添加微量元素后，二次枝晶臂间距减小，含cu合金的枝晶臂间距减小了~ 44.44 %。通过不同的模具几何形状来改变换热条件，研究了铸造条件的影响。随着溶质的添加和传热条件的改变，合金的拉伸性能和维氏显微硬度等力学性能得到了显著改善。主合金和含Cu合金的最大强度分别为~ 429 MPa和~ 562 MPa。含cu合金表现出良好的强度-塑性组合，TEM-STEM分析证实了富铁团簇和富cu相的形成。目前的研究表明，与纯元素形成的合金相比，成本降低了1/10。

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引用次数: 0

Metallurgical investigations of steel bar reinforcement used in 17th Century Lohagad Hill Fort, India 印度 17 世纪洛哈加德山堡所用钢筋的冶金学研究

Journal of Alloys and Metallurgical Systems

Pub Date : 2025-06-01 Epub Date: 2025-03-13 DOI: 10.1016/j.jalmes.2025.100175

Manager Rajdeo Singh , Aditya Prakash Kanth , Gajanan Mandaware

A comprehensive study was undertaken to examine the steel architectonic reinforcement employed in the construction of 17th century Lohagad Hill Fort. This investigation encompassed a meticulous analysis involving multiple techniques, including metallography, optical imaging, assessment of potentiodynamic behavior, X-ray diffraction (XRD), and scanning electron microscopy. The outcomes of this investigation revealed compelling evidence of sophisticated technology, to indicate the heat treatment and enhanced resistance to corrosion. Through rigorous metallographic examination, it was established that the examined specimen originated from a solid-state reduction process commonly known as the bloomery process. Following this initial stage, the resultant iron bloom underwent forging procedures within a charcoal-fueled fire, culminating in its final configuration through a precise bending operation. Formation of iron oxides on the steel surface within due course of time make it passive to corrosion.

对17世纪Lohagad山堡的钢筋加固进行了全面的研究。这项研究包含了多种技术的细致分析，包括金相学、光学成像、电位动力学行为评估、x射线衍射（XRD）和扫描电子显微镜。这项调查的结果揭示了令人信服的先进技术的证据，表明热处理和增强的耐腐蚀性。通过严格的金相检查，确定被检查的样品起源于通常称为bloomery过程的固态还原过程。在这个初始阶段之后，所得到的铁花在木炭燃料的火中进行锻造过程，通过精确的弯曲操作达到最终的形状。在适当的时间内，在钢表面形成氧化铁，使其不受腐蚀。

引用次数: 0

The effects of selective laser melting (SLM) process parameters on the microstructure and mechanical properties of FeCrMnNi nitrogen-containing stainless steel 选择性激光熔化（SLM）工艺参数对FeCrMnNi含氮不锈钢组织和力学性能的影响

Journal of Alloys and Metallurgical Systems

Pub Date : 2025-06-01 Epub Date: 2025-04-08 DOI: 10.1016/j.jalmes.2025.100181

Ziyu Zhang, Geng Liu, Ao Wang, Jie Su, Yali Ding, Jing Ning

The additive manufacturing of nitrogen-containing steels encounters significant challenges, including nitrogen loss and the formation of nitrogen pores, both of which detrimentally impact mechanical properties. This study fabricated FeCrMnNi nitrogen-containing stainless steel specimens using selective laser melting (SLM) technology. The effects of different process parameters (including laser power and scanning speed) on the nitrogen behavior, microstructure and mechanical properties of the specimens were systematically investigated. The results indicate that the nitrogen content in the as-deposited specimens was reduced compared to the original powder (0.32 %). The increase in energy density led to a gradual increase in nitrogen loss and a decrease in the porosity of the as-deposited specimens, which can be attributed to the combined effects of changes in melt pool size and solidification rate. A balanced performance was achieved at a laser power of 280 W and a scanning speed of 1200 mm/s, with 0.025 % porosity, 773.5 MPa tensile strength, and 37.25 % elongation. Less loss of nitrogen content and allowing the presence of fewer holes seem to result in better mechanical properties.

含氮钢的增材制造面临着巨大的挑战，包括氮的损失和氮孔的形成，这两者都对机械性能产生不利影响。采用选择性激光熔化（SLM）技术制备了FeCrMnNi含氮不锈钢试样。系统研究了不同工艺参数（包括激光功率和扫描速度）对试样氮行为、显微组织和力学性能的影响。结果表明，与原始粉末相比，沉积试样中的氮含量降低了0.32 %。随着能量密度的增加，沉积态试样的氮损失逐渐增加，孔隙率逐渐降低，这可能是熔池尺寸和凝固速率变化的共同作用。在激光功率为280 W、扫描速度为1200 mm/s的条件下，试样的孔隙率为0.025 %，抗拉强度为773.5 MPa，伸长率为37.25 %。更少的氮含量损失和允许更少的孔的存在似乎会导致更好的机械性能。

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引用次数: 0

High strength zinc composite with tungsten reinforcements as a potential biomaterial 钨增强高强度锌复合材料是一种潜在的生物材料

Journal of Alloys and Metallurgical Systems

Pub Date : 2025-06-01 Epub Date: 2025-04-29 DOI: 10.1016/j.jalmes.2025.100186

A. Viswakalpa , S. Nilawar , K. Chatterjee , R. Suman , M. Ramakrishna , K.K. Sahu , S. Gollapudi

There has been a significant interest in Zinc-based biomaterials on account of their biocompatibility as well as biodegradability. The low mechanical strength of pure Zinc has however limited its widespread application. In this work we report improvement in the strength of Zn brought about by the introduction of W as reinforcement. By employing a combination of powder metallurgy, casting and thermo-mechanical processing, bulk Zn-20 wt% W composite bearing a relative density of 98 % and flexural strength 100 % higher than that of pure Zn was produced. Potentiodynamic polarization tests in Hanks balanced salt solution revealed that the i_corr value of the composite was almost similar to that of Zn at 2.23 × 10⁻³ A/cm². X-ray photoelectron spectroscopy studies on the samples exposed to the electrolyte revealed the presence of a Zn based passivation layer in both Zn and the Zn-20W samples. In-vitro cytotoxicity tests revealed a similar cell response in Zn and Zn-20W samples. In the absence of a binary phase diagram for Zn and W, Miedema’s model was employed to understand the phase formation tendencies in the Zn-W system. X-ray diffraction studies showed that the Zn and W retained their elemental form within the composite despite the plethora of processing steps employed for its production.

由于锌基生物材料的生物相容性和生物可降解性，人们对其有着极大的兴趣。纯锌的机械强度低，限制了其广泛应用。在本工作中，我们报道了引入W作为增强剂对Zn强度的提高。采用粉末冶金、铸造和热机械相结合的方法，制备出了相对密度为98 %、抗折强度比纯Zn高100 %的块状Zn-20 wt% W复合材料。在Hanks平衡盐溶液中的动电位极化测试表明，复合材料的icorr值与Zn的icorr值相近，为2.23 × 10−3 A/cm2。x射线光电子能谱研究表明，Zn和Zn- 20w样品中均存在Zn基钝化层。体外细胞毒性试验显示，锌和锌- 20w样品的细胞反应相似。在没有Zn和W的二元相图的情况下，采用Miedema的模型来理解Zn-W体系的相形成趋势。x射线衍射研究表明，尽管生产过程中采用了过多的加工步骤，但Zn和W在复合材料中仍保持其元素形式。

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引用次数: 0

Recent advances in zinc-based metal matrix composites: Fabrication, properties, and future prospects 锌基金属基复合材料的最新进展：制备、性能和未来展望

Journal of Alloys and Metallurgical Systems

Pub Date : 2025-06-01 Epub Date: 2025-03-10 DOI: 10.1016/j.jalmes.2025.100173

Khursheed Ahmad Sheikh, Mohammad Mohsin Khan

Zinc-based metal matrix composites (MMCs) represent a significant advancement in materials engineering due to their exceptional combination of mechanical, thermal, and tribological properties. Reinforced with ceramics or other materials, these composites offer superior wear resistance, strength, and stability, making them valuable for industries like automotive, aerospace, and biomedical devices. Despite their promising properties, zinc-based MMCs face challenges related to cost-effective manufacturing, optimization of reinforcement materials, and balancing mechanical performance with weight and ductility. This comprehensive review explores the current state of zinc-based composites, detailing the fabrication techniques, microstructural features, physical and mechanical properties that define their performance. Special emphasis is placed on the impact of reinforcements on hardness, tensile strength, and thermal stability, alongside challenges like porosity, grain refinement, and interface bonding. Manufacturing techniques such as stir casting, powder metallurgy, and spark plasma sintering are highlighted for their roles in shaping material performance. Furthermore, it highlights emerging applications and potential future directions, emphasizing the need for continued innovation in the development of hybrid composites and the application of advanced characterization techniques. This comprehensive analysis provides valuable guidance for optimizing zinc-based MMCs to meet specific industrial requirements and supports ongoing research into this versatile class of materials.

锌基金属基复合材料（MMC）集机械、热和摩擦学特性于一身，是材料工程领域的一大进步。这些复合材料以陶瓷或其他材料为增强材料，具有优异的耐磨性、强度和稳定性，因此对汽车、航空航天和生物医学设备等行业具有重要价值。尽管锌基 MMC 具有良好的性能，但在成本效益制造、增强材料优化以及平衡机械性能与重量和延展性等方面仍面临挑战。本综述探讨了锌基复合材料的现状，详细介绍了决定其性能的制造技术、微观结构特征、物理和机械性能。特别强调了增强材料对硬度、拉伸强度和热稳定性的影响，以及孔隙率、晶粒细化和界面结合等难题。书中重点介绍了搅拌铸造、粉末冶金和火花等离子烧结等制造技术在塑造材料性能方面的作用。此外，报告还重点介绍了新兴应用和潜在的未来发展方向，强调了在开发混合复合材料和应用先进表征技术方面持续创新的必要性。这一全面的分析为优化锌基 MMC 以满足特定的工业要求提供了宝贵的指导，并为这一类多功能材料的持续研究提供了支持。

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引用次数: 0

Effect of post-weld heat treatment on dissimilar AA2014-AA5083 friction stir welded joints 焊后热处理对异种AA2014-AA5083搅拌摩擦焊接接头的影响

Journal of Alloys and Metallurgical Systems

Pub Date : 2025-06-01 Epub Date: 2025-03-11 DOI: 10.1016/j.jalmes.2025.100177

Vipin Sharma, Mohit Pramod Sharma, Anuj Kumar Jain

In this study the AA2014-AA5083 alloys are friction stir welded at two different rotational speeds of 1400 and 1000 rpm with constant welding speed of 63 mm/min. To investigate the microstructural thermal stability of welded joints post-weld heat treatment is conducted at 573 K, 673 K, 773 K and 823 K. The welded specimen showed thermal stability up to 673 K in both the conditions. At higher temperatures, the low rotational speed specimen showed the abnormal grain growth. On the other hand, the specimen welded at 1400 rpm showed location dependent and limited abnormal grain growth. Specimens welded at 1000 rpm exhibited lower tensile strength and ductility than those welded at 1400 rpm due to abnormal grain growth.

在这项研究中，AA2014-AA5083 合金在 1400 和 1000 rpm 两种不同转速下进行搅拌摩擦焊接，焊接速度恒定为 63 mm/min。为了研究焊接接头的微观结构热稳定性，在 573 K、673 K、773 K 和 823 K 下进行了焊后热处理。在这两种条件下，焊接试样的热稳定性最高可达 673 K。在较高温度下，低转速试样出现异常晶粒增长。另一方面，以 1400 转/分焊接的试样显示出与位置有关的有限的异常晶粒长大。由于晶粒异常生长，以 1000 rpm 焊接的试样的拉伸强度和延展性低于以 1400 rpm 焊接的试样。

引用次数: 0

Magnetic and corrosion properties of Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 high entropy alloy Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5高熵合金的磁性和腐蚀性能

Journal of Alloys and Metallurgical Systems

Pub Date : 2025-06-01 Epub Date: 2025-05-09 DOI: 10.1016/j.jalmes.2025.100189

Priyanka Kumari , Shashi Kant Mohapatra , U.K. Goutam , Rohit R. Shahi

High Entropy Alloys (HEAs) exhibit exceptional mechanical properties, corrosion resistance, better high temperature stability, and higher electrical resistivity than conventional alloys due to the presence of multiple principal elements. In this study, we synthesized Co₃₅Cr₅Fe₁₀Ni₃₀Ti₅Al_7.5Mn_7.5 HEA through the mechanical alloying technique and investigated the effect of Mn addition for Al on the phase formation, magnetic, and corrosion properties. A single fcc phase has formed for Co₃₅Cr₅Fe₁₀Ni₃₀Ti₅Al_7.5Mn_7.5 HEA. After vacuum annealing at 700 °C for 2 h followed by RT cooling, a slight amount of new σ phase is formed along with the initial fcc phase for Co₃₅Cr₅Fe₁₀Ni₃₀Ti₅Al_7.5Mn_7.5 HEA. The saturation magnetization and coercivity value is 83 emu/g and 6 Oe for as-synthesized Co₃₅Cr₅Fe₁₀Ni₃₀Ti₅Al_7.5Mn_7.5 HEA. After annealing at 700 °C, the saturation magnetization significantly increased to 109 emu/g, whereas the value of coercivity remains the same. We also found good corrosion resistance for synthesized Co₃₅Cr₅Fe₁₀Ni₃₀Ti₅Al_7.5Mn_7.5 HEA in 1 M NaCl solution, and the corrosion rate is found to be 0.028 mm/y. Thus, the found the high value of Ms and extremely low corrosion rate makes the developed Co₃₅Cr₅Fe₁₀Ni₃₀Ti₅Al_7.5Mn_7.5 HEA a promising soft magnetic material for industrial applications.

由于含有多种主要元素，高熵合金（HEAs）比传统合金具有优异的机械性能、耐腐蚀性、更好的高温稳定性和更高的电阻率。本研究通过机械合金化技术合成了Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA，并研究了添加Mn对Al相形成、磁性和腐蚀性能的影响。Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA形成单一fcc相。Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA在700 °C真空退火2 h后进行RT冷却，在初始fcc相形成的同时形成少量新的σ相。Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA的饱和磁化强度和矫顽力值分别为83 emu/g和6 Oe。在700 ℃退火后，饱和磁化强度显著提高至109 emu/g，而矫顽力保持不变。合成的Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA在1 M NaCl溶液中的耐蚀性良好，腐蚀速率为0.028 mm/y。因此，高Ms值和极低的腐蚀速率使所开发的Co35Cr5Fe10Ni30Ti5Al7.5Mn7.5 HEA成为一种有前景的工业应用软磁材料。

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引用次数: 0

Development and evaluation of superhydrophobic carbon nanotube coatings onmaraging steel: Corrosion protection, and anti-fouling characteristics 马氏体时效钢超疏水碳纳米管涂层的开发与评价：防腐蚀和防污性能

Journal of Alloys and Metallurgical Systems

Pub Date : 2025-06-01 Epub Date: 2025-05-08 DOI: 10.1016/j.jalmes.2025.100188

F.abdel Mouez , H. Halfa , Ahmed Yahia , H.M. Hussien , Mohab Gaber , Heba H. Ali

This study presents a novel and environmentally sustainable method for synthesizing high-quality carbon nanotubes (CNTs) from orange peel biomass for enhanced corrosion protection of maraging steel in marine environments. Using a one-step, catalyst-free chemical vapor deposition (CVD) process at a relatively low temperature of 600 °C, a dense and vertically aligned CNT coating was successfully deposited on the steel surface. Raman spectroscopy confirmed the structural integrity and high graphitization of the CNTs, while scanning electron microscopy revealed their uniform nanoscale architecture. Wettability analysis showed a significant transformation from the hydrophilic nature of untreated steel (water contact angle ∼50°) to a superhydrophobic state (contact angle ∼130°) after CNT deposition. Atomic force microscopy indicated a substantial increase in surface roughness, contributing to the superhydrophobic behavior. Electrochemical tests, including potentiodynamic polarization and electrochemical impedance spectroscopy (EIS), demonstrated that the CNT-coated surface exhibited a corrosion current density three times lower and corrosion resistance five times higher than bare steel. Additionally, the impedance response increased by three orders of magnitude, confirming the coating’s effectiveness in mitigating electrochemical degradation. Long-term immersion testing in seawater containing fouling microorganisms further validated the antifouling capabilities of the CNT coating, with no visible biofouling observed after three months. These results highlight the potential of bio-derived CNT coatings as multifunctional, eco-friendly solutions for marine corrosion protection.

本研究提出了一种新颖且环境可持续的方法，用于从橘子皮生物质中合成高质量的碳纳米管（CNTs），以增强海洋环境中马氏体时效钢的防腐能力。采用一步无催化剂化学气相沉积（CVD）工艺，在相对较低的600°C温度下，成功地在钢表面沉积了致密且垂直排列的碳纳米管涂层。拉曼光谱证实了碳纳米管的结构完整性和高石墨化，而扫描电子显微镜显示了碳纳米管均匀的纳米结构。润湿性分析表明，碳纳米管沉积后，未经处理的钢从亲水性（水接触角~ 50°）转变为超疏水性（接触角~ 130°）。原子力显微镜显示，表面粗糙度显著增加，有助于超疏水行为。电化学测试，包括动电位极化和电化学阻抗谱（EIS），表明碳纳米管涂层表面的腐蚀电流密度比裸钢低3倍，耐腐蚀性高5倍。此外，阻抗响应提高了三个数量级，证实了涂层在减轻电化学降解方面的有效性。在含有污垢微生物的海水中进行的长期浸泡测试进一步验证了碳纳米管涂层的防污能力，三个月后没有观察到明显的生物污垢。这些结果突出了生物衍生碳纳米管涂层作为多功能、环保的海洋防腐解决方案的潜力。

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引用次数: 0