不锈钢与GFER及CFRPEEK在海水润滑下的摩擦磨损特性

王志强; $2; $2

引用本文:	王志强，倪敬，高殿荣.不锈钢与GFER及CFRPEEK在海水润滑下的摩擦磨损特性[J].中国表面工程,2016,29(2):49~57
	WANG Zhiqiang, NI Jing, GAO Dianrong.Friction and Wear Properties of Stainless Steel Sliding Against GFER and CFRPEEK Under Seawater Lubrication[J].China Surface Engineering,2016,29(2):49~57

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不锈钢与GFER及CFRPEEK在海水润滑下的摩擦磨损特性
王志强，倪敬，高殿荣^1,2
1. 杭州电子科技大学机械工程学院;2. 燕山大学机械工程学院

摘要:

为了寻找适合于低速大扭矩海水液压马达的各摩擦副之间的配对材料，分别以不锈钢（316L和9Cr18Mo）与玻纤环氧复合材料(GFER)及碳纤维增强聚醚醚酮(CFRPEEK)为摩擦副，利用MMU5G屏显式高温材料端面摩擦磨损试验机对摩擦副在海水中接触表面的温度、摩擦因数和摩擦磨损状况进行了测试，并通过激光共聚焦显微镜对接触表面的磨损形貌进行分析。结果表明：不锈钢/GFER的摩擦因数随着时间的变化在0.3~0.4间波动且幅度较大，而不锈钢/CFRPEEK的摩擦因数随着时间的增加稳定在0.1左右；不锈钢/GFER所引起海水温升的幅度也远远高于不锈钢/CFRPEEK；不锈钢/GFER的接触表面出现了大面积的涂抹与擦伤，且磨损程度要大于不锈钢/CFRPEEK；不锈钢316L的耐腐蚀性优于9Cr18Mo。由此可知，316L/CFRPEEK较适合作为低速大扭矩海水液压马达的摩擦副材料。

关键词: 海水润滑摩擦副复合材料腐蚀磨损

DOI：10.11933/j.issn.1007-9289.2016.02.008

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Friction and Wear Properties of Stainless Steel Sliding Against GFER and CFRPEEK Under Seawater Lubrication

WANG Zhiqiang, NI Jing, GAO Dianrong^1,2

1. School of Mechanical Engineering, Hangzhou Dianzi University;2. College of Mechanical Engineering, Yanshan University

Abstract:

To find the appropriate counter materials of friction pairs for low speed high torque seawater hydraulic motor stainless steel 316L and 9Cr18Mo sliding against glass fiberepoxy resin (GFER) and carbonfiberreinforced polyetheretherketone (CFRPEEK) were prepared as friction pairs. The contact surface temperature, friction coefficient and wearing status of friction pairs in seawater were investigated by using an MMU5G high temperature friction and wear tester. After the friction test, the worn surface morphologies were observed by a laser scanning confocal microscope. The results show that the friction coefficient of stainless steel against GFER fluctuates around 0.30.4 with increasing test time and higher in amplitude. The friction coefficient of stainless steel against CFRPEEK is around 0.1 until the end of the experiment. The seawater temperature variations of stainless steel against glass fibreepoxy resin are much higher than that of stainless steel against CFRPEEK. The worn surfaces of stainless steel against GFER exhibites vast areas of smears and scratches, and the degree of wear is larger than that of stainless steel against CFRPEEK. Additionally, stainless steel 316L has better corrosion resistance than 9Cr18Mo. Therefore, stainless steel 316L and CFRPEEK are more suitable for the counter materials of low speed high torque seawater hydraulic motor.

Key words: seawater lubrication friction pairs composites corrosion wear