文献类型：期刊文献

英文题名：Analysis of the wear behavior and corrosion resistance of CoCrFeNiMn-2% CNTs laser cladding composite coating

作者：Luo, Fangyan[1];Wang, Shanshan[1];Shi, Wenqing[2];Xiong, Zhengye[1];Huang, Jiang[1]

机构：[1]Guangdong Ocean Univ, Sch Elect & Informat Engn, Zhanjiang 524088, Guangdong, Peoples R China;[2]Guangdong Ocean Univ, Sch Mat Sci & Engn, Yangjiang 529500, Guangdong, Peoples R China

年份：2024

卷号：30

起止页码：6910

外文期刊名：JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T

收录：SCI-EXPANDED(收录号：WOS:001243174700001)、、EI(收录号：20242016105041)、Scopus(收录号：2-s2.0-85193201518)、WOS

基金：Supported by the National Natural Science Foundation Projects Of China (No. 62073089) , and the project of postgraduate demonstration courses (No. 2023SFKC_ 041) .

语种：英文

外文关键词：Carbon nanotube; High -entropy alloys; Corrosion resistance; Mechanical property; Wear resistance

外文摘要：Carbon nanotubes (CNTs), as a kind of nanopowder, can be used as reinforcing powder to improve various properties of coatings because of their good self-lubricating properties and three-dimensional structure. However, CNTs are difficult to mix uniformly with other powders due to their easily disrupted microstructure and extremely low density. Therefore, CoCrFeNiMn HEA and 2 wt% CNTs were mixed by a new mixing method- alcohol stirring and ball -less ball mill mixing methods. CoCrFeNiMn/2 wt% CNTs coatings prepared by laser cladding (LC). The phase composition, microstructure, wear resistance, and corrosion resistance of the HEA/ CNTs coating were analyzed by various characterization techniques. The results showed that grain refinement occurred in the coatings after adding CNTs, generating fine carbides. It was calculated that the densification percentage of the HEA/CNTs coating increased and the porosity decreased. Compared with the HEA coating, the microhardness of the HEA/CNTs coating increased by 101.66%, and the friction coefficient and wear rate of the HEA/CNTs coating were only 63.30% and 6.22% of the HEA coating. The more positive E corr and smaller I corr indicated that the HEA/CNTs coating has better corrosion resistance.