韦文竹,高原,陆小会,张光耀,彭凯,宋沂泽

• 1:桂林电子科技大学材料科学与工程学院

摘要(Abstract)：

采用双层辉光等离子渗金属技术在Q235钢表面渗入钨、钼、镝,并进行渗碳淬火和回火以形成表面高速钢层。研究表面高速钢层的成分和显微硬度,并利用HSR-2M型高速往复摩擦磨损试验机进行摩擦磨损性能研究。结果表明:镝的加入可以提高碳钢表面钨,钼,碳元素的含量,使得表面高速钢层的表面硬度从1072 HV0.05提高到1153 HV0.05;在10 N,20 N,30 N,40 N的载荷下,钨钼镝表面稀土高速钢的平均摩擦系数分别是钨钼表面高速钢的0.98倍,0.9倍,0.77倍,1.24倍;磨损体积分别是钨钼表面高速钢的0.98倍,0.76倍,0.93倍,0.83倍;在往复干摩擦条件下,钨钼表面高速钢的磨损失效形式主要是粘着磨损;加入镝后,失效模式改变为磨粒磨损,摩擦系数降低,显示出良好的减摩性能。

关键词(KeyWords)： 稀土;表面高速钢;磨擦性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51264007);国家自然科学基金青年基金(51201043);; 广西信息材料重点实验室项目(1210908-214-Z);; 桂林电子科技大学-桂林电器科学研究院研究生联合培养基地专项经费资助项目(20121225-01-Z,20121225-10-Z,20141103-09-Z);; 桂林电子科技大学研究生教育创新计划(GDYCSZ201433)

作者(Author): 韦文竹,高原,陆小会,张光耀,彭凯,宋沂泽

DOI: 10.13289/j.issn.1009-6264.2015.08.034

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