| 52 | 0 | 26 |
| 下载次数 | 被引频次 | 阅读次数 |
[目的]为提升风电主轴用42CrMo+Ni钢的耐磨与耐蚀性能,解决其在复杂服役环境下的表面失效问题,采用激光熔覆技术在其表面制备NiCoCrFeAlHfY高熵合金涂层。[方法]通过X射线衍射仪(XRD)、扫描电子显微镜(SEM)及能谱仪(EDS)表征涂层的物相组成、微观结构与元素分布,结合显微硬度测试、摩擦磨损实验及电化学测试,研究涂层的力学性能和耐腐蚀特性。[结果]结果表明:涂层与基体形成良好的冶金结合,主要由BCC固溶体及(Co,Fe,Ni)Al强化相组成,Hf与Y微合金元素的协同作用促进晶粒细化与组织致密化。相较于基体,涂层的平均显微硬度为529.6 HV,提升约49%,摩擦系数更低且磨损过程更稳定,在盐雾等腐蚀环境中表现出更优的耐蚀性,腐蚀电位为-0.375 5 V、腐蚀电流密度为基体的1/14,表面钝化膜稳定性更强。[结论]激光熔覆制备的NiCoCrFeAlHfY涂层可满足风电主轴的严苛服役需求。
Abstract:[Objective] To improve the wear resistance and corrosion resistance of 42CrMo+Ni steel for wind power main shafts and solve the surface failure problem in complex service environments, a NiCoCrFeAlHfY high-entropy alloy coating was prepared on its surface by laser cladding technology. [Method] The phase composition, microstructure and element distribution of the coating were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The mechanical properties and corrosion resistance of the coating were investigated through microhardness testing, friction and wear experiments, and electrochemical tests. [Result] The results show that the coating forms a good metallurgical bond with the substrate, mainly composed of BCC solid solution and
[1] 孙方红,任延杰,宋文卿. 42CrMo钢表面激光熔覆涂层的研究现状及进展[J]. 中国腐蚀与防护学报, 2025, 45 (04):849-858.
[2] 李瑞鑫,吴重仲,王一民,等. 控压氮化工艺对42CrMo钢渗后组织和性能的影响[J]. 表面技术, 2025, 54 (07) :180-188+202.
[3] 王斯宇,谢春晓,杨宇辉, 等. 超声喷丸工艺参数对42CrMo钢表面质量的影响[J]. 塑性工程学报, 2024, 31 (05): 71-78.
[4] 姬秀芳,刘丽敏,张清, 等. 感应调质处理升温速率对42CrMo钢组织与性能的影响[J]. 金属热处理, 2025, 50 (11):309-312.
[5] 杨帆, 郭一帆, 胡永俊, 等. 激光熔覆Al(0.1)CoCrFeNiTi高熵合金涂层高温氧化与高温腐蚀性能研究[J]. 材料研究与应用, 2025, 19(06):1053-1062.
[6] 丁睿,王杏华,胡成辉,等. 激光熔覆涂层摩擦磨损性能的研究进展[J]. 科技与创新, 2025, (10):35-38.
[7] 高世龙,朱孟浩,时婧. 激光熔覆粉末研究综述[J]. 功能材料, 2025, 56(03):3047-3057+3088.
[8] 张红霞, 蔡志龙, 李永斌, 等. 激光熔覆TiC增强的TiNiCoCrVSi高熵合金涂层组织结构与性能[J]. 电镀与涂饰, 2025, 44(11):55-62.
[9] Lian G F, Gao W B, Chen C R, et al. Review on hard particle reinforced laser cladding high-entropy alloy coatings[J]. Journal of Materials Research and Technology, 2024, 33:1366-1405.
[10] 豆微, 陈冲, 张国赏, 等. 高熵合金涂层的研究现状[J]. 电镀与涂饰, 2023, 42(16):33-42.
[11] Yue K, Yang X Q, Wang L, et al. Effect of Ti content on spinodal decomposed microstructure and properties of AlCoCrFeNiTix high-entropy alloy coatings prepared by laser cladding[J]. Journal of Materials Research and Technology, 2025, 34:1120-1129.
[12] Li H J, Zhao W, Wang L, et al. Effect of Mo-V co-addition on the elastic properties and wear resistance of AlCoCrFeNi high-entropy alloy laser cladding coatings[J]. Intermetallics, 2025, 187:109016.
[13] He Z H, Dong Y C, Tian Y, et al. Effect of Cr content on the microstructure and corrosion resistance of laser cladded FeCoNiMnAl0.5Crx high entropy alloy coatings[J]. Journal of Alloys and Compounds, 2025, 1043:184249.
[14] 易慧,吴长军,周琛,等.Al-Cr-Fe-Mn-Ni高熵合金中的L21相的相稳定性及其性能研究[J].材料导报,2024,38(11):200-208.
[15] Christopher D. Woodgate, Hubert J. Naguszewski, David Redka, et al. Emergent B2 chemical orderings in the AlTiVNb and AlTiCrMo refractory high-entropy superalloys studied via first-principles theory and atomistic modelling[J]. Journal of Physics: Materials, 2025, 8(4):045002.
[16] Santodonato, L., Zhang, Y., Feygenson, M. et al. Deviation from high-entropy configurations in the atomic distributions of a multi-principal-element alloy[J]. Nat Commun, 2015, 6:5964.
[17] 邱昊, 封立同, 董真, 等. 激光熔覆FeMnCoCrSix高熵合金涂层的微观组织与摩擦学性能研究[J]. 材料研究与应用, 2025, 19(06):1063-1074.
[18] 孟易辰,褚胤闰,石岳林,等. 激光熔覆CoCrNi系中高熵合金的摩擦学和电化学性能研究[J]. 稀有金属材料与工程, 2025, 54(04):983-992.
[19] Zhao Z Y, Zou Y, Liu P, et al. EIS equivalent circuit model prediction using interpretable machine learning and parameter identification using global optimization algorithms[J]. Electrochimica Acta, 2022, 418:140350.
基本信息:
中图分类号:TG174.4;TG665
引用信息:
[1]王正阳,李萌,韩玉君,等.激光熔覆NiCoCrFeAlHfY高熵合金涂层的组织与耐磨耐蚀性能研究[J].电镀与涂饰().
基金信息:
江苏省研究生实践创新计划项目(SJCX25_1260); 中国高校产学研创新基金项目(2025ZJ020); 中核集团基础研究[2023]440号; 国家自然科学基金项目(52575211)
2026-07-02
2026-07-02
2026-07-02