摘要
采用激光熔覆工艺在Q235钢板表面制备Fe_(50-x)Mn_(30)Cr_(10)Co_(10)(VC)x(x=0,1,3,原子分数/%)高熵合金涂层,研究了VC添加量对涂层微观形貌、物相组成、硬度、耐磨性能和耐腐蚀性能的影响。结果表明:3种VC添加量的高熵合金涂层与基体均结合良好,涂层中仅存在较少的孔洞等缺陷,其物相均为面心立方结构的固溶相;随着VC添加量的增加,高熵合金涂层的组织发生细化,显微硬度增大;VC的添加能同时提高Fe_(50)Mn_(30)Cr_(10)Co_(10)高熵合金涂层的耐磨性能和耐腐蚀性能,并且VC添加量越多,耐磨性能和耐腐蚀性能越好。
Fe_(50-x)Mn_(30)Cr_(10)Co_(10)(VC)x(r=O,1,3,atomic fraction/%)high-entropy alloy coatings were prepared on Q235 steel plate surface by laser cladding technique.The effect of VC addition on the micromorphology,phase composition,hardness,wear resistance and corrosion resistance of the coating was studied.The results show that the high-entropy alloy coatings with three VC additions were well bonded with the substrate,and there were only a few defects such as holes in the coatings.The three coatings were all composed of solid solution phases with a face-centered cubic structure.With increasing VC addition,the structure of the highentropy alloy coating was refined,and the microhardness increased.The addition of VC could improve both wear resistance and corrosion resistance of Fe_(50)Mn_(30)Cr_(10)Co_(10)high-entropy alloy coating,and the more the VC was added,the better the wear resistance and corrosion resistance were.
作者
聂辉文
曾松盛
聂俊红
赖春明
NIE Huiwen;ZENG Songsheng;NIE Junhong;LAI Chunming(Hunan Chemical Vocational Technology College,Zhuzhou 410012,China;Valin Arcelor Mittal Automotive Panel Co.,Ltd.,Loudi 417009,China)
出处
《机械工程材料》
CAS
CSCD
北大核心
2023年第4期7-11,27,共6页
Materials For Mechanical Engineering
基金
湖南省科教联合基金资助项目(2020JJ6090)。
