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Corrosion behavior of Al2CrFeCoxCuNiTi high-entropy alloy coating in alkaline solution and salt solution 作者:Qiu, XW (Qiu, Xing-wu)[ 1 ] RESULTS IN PHYSICS 卷: 12 页: 1737-1741 DOI: 10.1016/j.rinp.2019.01.090 出版年: MAR 2019 文献类型:Article 查看期刊影响力 摘要 The Al2CrFeCoxCuNiTi high-entropy alloy coatings were prepared by laser cladding. The microstructure of the coatings was tested by micro analysis instrument. Electrochemical properties of coating and matrix were tested by electrochemical analysis instrument. The results show that the cladding zone is mainly composed of equiaxed grains, as well as fine particles and white "fishbone" grains distributed in the matrix grains. The corrosion resistance of Al-2 CrFeCoxCuNiTi coatings is excellent in 1 mol/L NaOH and 3.5 wt% NaCl solutions. The corrosion current density of Al2CrFeCoxCuNiTi high-entropy alloy coating in 1 mol/L NaOH solution is reduced by 3 orders of magnitude compared with Q235 steel, and the corrosion potential is positively shifted to 0.03-0.27 V. The corrosion current density of Al2CrFeCoxCuNiTi high-entropy alloy coating in 3.5 wt% NaCl solution is lower than that of Q235 steel. The corrosion potential moves toward "positive" except for Co-0.0, coating, and the movement amplitude is 0.06-0.35 V. Cyclic polarization curve shows no pitting corrosion in the 3.5 wt% NaCl solution for the Co-1.5 high-entropy alloy coating, but slight pitting corrosion in 1 mol/L NaOH solution for the Co(1.5)highentropy alloy coating. 关键词 作者关键词:High-entropy alloys; Laser cladding; Microstructure; Corrosion behavior KeyWords Plus:MECHANICAL-PROPERTIES; MICROSTRUCTURE; RESISTANCE; TEMPERATURE; DESIGN; PHASE; CAST 作者信息 通讯作者地址: Qiu, XW (通讯作者) Sichuan Coll Architectural Technol, Dept Mat Engn, Deyang 618000, Peoples R China. 地址: [ 1 ] Sichuan Coll Architectural Technol, Dept Mat Engn, Deyang 618000, Peoples R China 电子邮件地址:fallenrain922@163.com 基金资助致谢 基金资助机构 授权号 Project of Deyang Science and Technology Bureau 2018SZY120 Sichuan Province, China 查看基金资助信息 出版商 ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS 类别 / 分类 研究方向:Materials Science; Physics Web of Science 类别:Materials Science, Multidisciplinary; Physics, Multidisciplinary 文献信息 语言:English 入藏号: WOS:000460704700251 ISSN: 2211-3797 其他信息 IDS 号: HO1XF Web of Science 核心合集中的 "引用的参考文献": 33 Web of Science 核心合集中的 "被引频次": 0 |
2楼2019-03-25 17:01:52