表面粗糙度对SA508 Gr.3 Cl.1钢-石墨摩擦副摩擦磨损性能的影响  

Effect of Surface Roughness on Friction and Wear Properties of SA508 Gr.3 Cl.1 Steel-Graphite Friction Pairs

作　　者：郑张利 王文东[2] 王飞[2] ZHENG Zhangli;WANG Wendong;WANG Fei(Shanghai Nuclear Engineering Research&Design Institute Co.,Ltd.,Shanghai 200233,China;Shanghai Research Key Laboratory of Engineering Materials Application and Evaluation,Shanghai Research Institute of Materials Co.,Ltd.,Shanghai 200437,China)

机构地区：[1]上海核工程研究设计院股份有限公司,上海200233 [2]上海材料研究所有限公司,上海市工程材料应用与评价重点实验室,上海200437

出　　处：《机械工程材料》2024年第6期26-32,共7页Materials For Mechanical Engineering

基　　金：2022年度上海市产业协同创新项目(XTCX-KJ-2022-57)。

摘　　要：采用旋转钢圆环-固定石墨圆环式端面摩擦副结构,对不同表面粗糙度(0.319,0.451,1.210,2.300,5.240μm)的SA508 Gr.3 Cl.1钢进行干摩擦磨损试验,研究了试验钢表面粗糙度对摩擦副摩擦磨损性能的影响,分析了磨损机制。结果表明:随着试验钢表面粗糙度增加,摩擦因数先减小后增大,表面粗糙度为0.451μm时最小,为5.240μm时最大;石墨的摩擦磨损质量损失整体呈增大趋势,磨损机制均以磨粒磨损为主。当表面粗糙度较低时,石墨在试验钢磨损面形成大面积光滑的转移膜,膜中碳含量较高;当表面粗糙度较高时,产生犁沟效应,石墨转移膜面积较小,膜中碳含量较少。The dry friction and wear tests were carried out on the SA508 Gr.3 Cl.1 steel with different surface roughness(0.319,0.451,1.210,2.300,5.240μm)by using the rotating steel ringfixed graphite ring end face friction pair structure.The effect of the test steel surface roughness on the friction and wear properties of friction pairs was studied,and the wear mechanism was analyzed.The results show that with the increase of the surface roughness of the test steel,the friction coefficient decreased first and then increased,reaching the smallest value when the surface roughness was 0.451μm and the largest value when the surface roughness was 5.240μm.The friction and wear mass loss of the graphite increased basically with the increase of the surface roughness,and the wear mechanism was mainly abrasive wear.When the surface roughness was relatively low,a large area smooth graphite transfer film was formed on the wear surface of the test steel,and the carbon content in the film was relatively high.When the surface roughness was relatively high,the furrow effect was formed,and the area of the graphite transfer film and the carbon content in the film were relatively small.

关 键 词：摩擦因数 磨损质量损失 石墨 转移膜 表面粗糙度 

分 类 号：TB321[一般工业技术—材料科学与工程]