300M钢激光熔覆C276涂层微观组织和电化学性能
Microstructure and electrochemical properties of laser cladding C276 coating on 300M steel
查看参考文献22篇
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文摘
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为提升300M钢表面耐腐蚀性,采用NCLT CW-1K固体Nd: YAG激光器系统,利用激光熔覆技术在300M钢表面制备Hastelloy C276涂层,对C276涂层的宏观形貌、物相组成进行表征,利用滑动摩擦磨损机、电化学工作站进行摩擦磨损、电化学测试。结果表明:激光熔覆C276涂层质量良好,C276涂层较基体显微硬度提升1.4倍,但耐磨性低于300M钢基体;涂层腐蚀电位最大,腐蚀电流密度最小,在300M钢表面采用激光熔覆技术制备出C276涂层,显著提升300M钢表面耐蚀性能,为提升材料表面的耐蚀和防腐性能提供新的方案。 |
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其他语种文摘
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IIn order to improve the corrosion resistance of 300M steel surface,NCLT was used in cw-1k solid-state Nd: YAG laser system,Hastelloy C276 coating with 800W laser power and 8 mm/s scanning speed was prepared on the surface of cw-1k solid-state Nd: YAG laser system.The macro morphology, microstructure, phase composition,microhardness,friction and wear properties and electrochemical properties of C276 coating were tested.The results show that the microhardness of C276 coating is increased by 1.4 compared with the substrate.However, the wear resistance of the coating is lower than that of the 300M steel substrate, the corrosion potential of the coating is the highest, the self-corrosion current density is the smallest.The C276 coating is prepared on the surface of 300M steel by laser cladding technology, which significantly improves the corrosion resistance of 300M steel surface, and provides a new scheme for improving the corrosion resistance and corrosion resistance of the material surface. |
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来源
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航空材料学报
,2021,41(5):86-93 【核心库】
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DOI
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10.11868/j.issn.1005-5053.2020.000153
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关键词
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300M钢
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Hastelloy C276
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激光熔覆
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微观组织
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电化学
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地址
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1.
中国民航大学机场学院, 天津, 300300
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中国民航大学航空工程学院, 天津, 300300
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1005-5053 |
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学科
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航空 |
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基金
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国家自然科学基金面上项目
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文献收藏号
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CSCD:7068291
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