期刊
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
卷 33, 期 11, 页码 1416-1423出版社
JOURNAL MATER SCI TECHNOL
DOI: 10.1016/j.jmst.2017.06.014
关键词
Metal-matrix composites (MMCs); Hardness; Self-lubricating; Spark plasma sintering; Interfacial reaction
资金
- National Natural Science Foundation of China [51471177]
- Youth Innovation Promotion Association CAS [2016178]
- Fundamental Research Funds for the Central Universities [N160205001]
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. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
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