时海芳,李德财,白杨,张正强,金鑫,李逸凡

• 1:辽宁工程技术大学材料科学与工程学院

摘要(Abstract)：

采用氩弧熔覆技术在Q235钢基体表面制备了CoCrFeNiCuTi_x(x表示摩尔比值，x=0、0.3、0.5、0.8和1)高熵合金涂层，研究了Ti含量对CoCrFeNiCuTi_x高熵合金微观结构和力学性能的影响。结果表明，不同Ti含量的CoCrFeNiCuTi_x高熵合金均为FCC单相固溶体。CoCrFeNiCu合金的微观组织为柱状晶结构。随着Ti的加入，微观组织中开始出现析出相，且Ti含量越高，析出相越多。同时Ti的加入明显提高了合金的显微硬度，当Ti的摩尔比为1时，涂层的截面显微硬度值达到最高值439.54 HV0.1。Ti对CoCrFeNiCuTi_x高熵合金的耐磨性具有显著影响，CoCrFeNiCuTi合金表现出最好的耐磨性。随着Ti含量的升高，合金的磨损机理由黏着磨损转化成黏着磨损与氧化磨损并存。

关键词(KeyWords)： 高熵合金涂层;氩弧熔覆;Ti;微观组织;力学性能

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 时海芳,李德财,白杨,张正强,金鑫,李逸凡

DOI: 10.13289/j.issn.1009-6264.2023-0419

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