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| Wear Performance of SiCp/A356 Aluminum Metal Matrix Composites |
| YE Yun, HE Guoqiu, DAI Liquan, LU Qi, LIU Xiaoshan, LU Shiquan
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| Shanghai Key Laboratory for R&D and Application of Metallic Functional Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804; |
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Abstract Under the condition of dry friction, the friction coefficient and wear rate of the aluminum metal matrix composites with 20 vol% silicon carbide particle were measured over a load range of 2-20 MPa at sliding velocities of 200 r/min and 400 r/min. In addition, the wear performance is studied and the mechanism diagram of friction and wear at different loads and sliding friction speed is established through microstructure analysis by SEM and elemental analysis by EDS. The results show that when loads and friction speed were relatively low, the main wear mechanism was slight particle wear, accompanied by oxidation wear. When load reached 10 MPa, the process turned from slight wear to severe wear, and delamination wear appeared gradually. At last, severe adhesive wear occured on the surface of the material with the load of 20 MPa and sliding speed of 400 r/min.
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Published: 25 January 2017
Online: 2018-05-02
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2017, Vol. 31 
