GCr15钢低温离子渗硫层的减磨性能

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关键词：GCr15钢；低温离子渗硫；自润滑；摩擦磨损中图分类号：TG 文献标志码：A

Antifriction performances of low temperature ion sulfide coatings of GCr15 steel

GAO Zhiwen12， SUN Li12， CUI Xiaoyan12， GAO Kekun12， LI De²， LIU Yong² （1. Henan Jingcheng Automobile Components Co.，Ltd.， Xinxiang 4530o0，China; 2. Henan Collaborate Innovation Centre of Heat Treatment， Xinxiang ， China）

Abstract： The friction and wear properties of GCr15 steel with diferent surface treatments were studied and analyzed by optical microscope， scanning electron microscope and UMT friction and wear testing machine. The results show that compared with the carbonitriding treated GCr15 steel，the carbonitriding and low-temperature sulfurizing treated GCr15 steel surface has formed a sulfurizing layer dominated by FeS，and the friction coefficient and volume wear rate are significantly reduced compared with the untreated samples， which can significantly improve the anti-scratch and anti-seizure capabilities of the bearing material surface， thereby prolonging the service life of the bearing parts. Through the analysis of the friction and wear surface morphology，the wear mechanism is abrasive wear and adhesive wear.

Keywords： GCr15 steel; low temperature ion sulfurization; self lubrication; friction and wear

摩擦磨损是导致轴承材料失效和能量耗损的主要原因，造成巨大的经济损失[1-3]。（剩余5133字）