激光熔覆AlCoCrFeNi高熵合金涂层的高温磨损性能  

High Temperature Wear Properties of Laser Cladding AlCoCrFeNi High Entropy Alloy Coatings

作　　者：林丽丽 陈星 杜开平 皮自强 LIN Lili;CHEN Xing;DU Kaiping;PI Ziqiang(Jiangxi Piaotang Tungsten Industry Co.,Ltd.,Ganzhou 341516,Jiangxi,China;BGRIMM Advanced Materials Science&Technology Co.,Ltd.,Beijing 102206,China;Beijing Key Laboratory of Special Coating Materials and Technology,Beijing 102206,China;Beijing Industrial Parts Surface Strengthening and Repairing Engineering Technology Research Center,Beijing 102206,China)

机构地区：[1]江西漂塘钨业有限公司,江西赣州341516 [2]北矿新材科技有限公司,北京102206 [3]特种涂层材料与技术北京市重点实验室,北京102206 [4]北京市工业部件表面强化与修复工程技术研究中心,北京102206

出　　处：《热喷涂技术》2024年第2期81-87,共7页Thermal Spray Technology

基　　金：江西省重点研发计划项目(20232BBE50018);江西钨业控股集团有限公司重大科技专项(JWGF-21ZD-01)。

摘　　要：采用激光熔覆技术在42CrMo表面制备了Y掺杂AlCoCrFeNi高熵合金涂层,研究了涂层组织成分与高温摩擦磨损性能。结果表明:AlCoCrFeNi涂层主要由BCC相和B2相组成,900℃下涂层耐磨性约为基体的3.7倍,平均摩擦因数相比基体降低约22%。A Y-doped AlCoCrFeNi high entropy alloy coating was prepared on the surface of 42CrMo using laser cladding technology,and the microstructure composition and high-temperature friction and wear performance of the coating were studied.The results show that the AlCoCrFeNi coating is mainly composed of BCC phase and B2 phase.The wear resistance of the coating at 900℃is about 3.7 times that of the substrate,and the average friction coefficient is reduced by about 22%compared to the substrate.

关 键 词：高熵合金 激光熔覆 组织结构 高温磨损 

分 类 号：TG174.442[金属学及工艺—金属表面处理]