Comparative study of mechanical and wear behavior of Cu/WS2 composites fabricated by spark plasma sintering and hot pressing
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2017年第11期
论文作者：Qunchang Wang Minghui Chen Zhongmao Shan Chengguo Sui Lin Zhang Shenglong Zhu Fuhui Wang
文章页码：1416 - 1423
摘 要：The mechanical and wear behavior of copper-tungsten disulfide（Cu/WS2） composites fabricated by spark plasma sintering（SPS） and hot pressing（HP） was investigated, comparatively. Results indicated that the addition of lubricant WS2 substantially reduced wear rate of the Cu matrix composites fabricated by SPS,and the optimum content of WS2 is 20 wt% with regard to the wear behavior. However, it affected a little to the wear rate while dramatically decreased the friction coefficient of the composite fabricated by HP.This difference in friction behavior of the self-lubricating composites fabricated by the two techniques was closely related to their different mechanical properties. Severe interfacial reaction occurred during spark plasma sintering, leading to brittle phase formation at interface.
Qunchang Wang1，Minghui Chen1，Zhongmao Shan2，Chengguo Sui2，Lin Zhang3，Shenglong Zhu4，Fuhui Wang1
1. Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Material Science and Engineering, Northeastern University2. AVIC Chengdu Aircraft Design & Research Institute3. AVIC Chengdu Aircraft Industrial (Group) Co., Ltd4. Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences
摘 要：The mechanical and wear behavior of copper-tungsten disulfide（Cu/WS2） composites fabricated by spark plasma sintering（SPS） and hot pressing（HP） was investigated, comparatively. Results indicated that the addition of lubricant WS2 substantially reduced wear rate of the Cu matrix composites fabricated by SPS,and the optimum content of WS2 is 20 wt% with regard to the wear behavior. However, it affected a little to the wear rate while dramatically decreased the friction coefficient of the composite fabricated by HP.This difference in friction behavior of the self-lubricating composites fabricated by the two techniques was closely related to their different mechanical properties. Severe interfacial reaction occurred during spark plasma sintering, leading to brittle phase formation at interface.
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