Tribological properties of Al-20Si-5Fe-2Ni-Graphite solid-lubricating composites

被引：22
|
作者：
Tan, Hui [1 ,2 ]
Wang, Shuai [1 ]
Cheng, Jun [1 ]
Zhu, Shengyu [1 ]
Yu, Yuan [1 ]
Qiao, Zhuhui [1 ]
Yang, Jun [1 ]
机构：
[1] Chinese Acad Sci, State Key Lab Solid Lubricat, Lanzhou Inst Chem Phys, Lanzhou 730000, Gansu, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2018年 / 121卷
基金：
中国国家自然科学基金;
关键词：
Al alloy matrix composites; Solid lubrication; Graphite; Wear; SLIDING WEAR BEHAVIOR; SITU POWDER-METALLURGY; HYBRID COMPOSITES; MATRIX COMPOSITES; ALUMINUM-ALLOYS; MECHANICAL-PROPERTIES; GRAPHITE CONTENT; AL-SI; FRICTION; PERFORMANCE;
D O I：
10.1016/j.triboint.2018.01.047
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Solid-lubricating composites show great potential for tribological applications. In this study, the Al-20Si-5Fe-2Ni-Graphite composites with 0-30 wt. % copper-coated graphite were fabricated by spark plasma sintering. Effect of Cu-coated graphite on the phase, microstructure, hardness, strength and dry sliding wear behavior of the composites was investigated. The results indicated that the formation of Al2Cu interface can enhance the mechanical properties of the composites. The friction coefficient and wear rate of the composites were dependent on the amount of copper-coated graphite and applied load. The composite containing 30 wt. % Cu-coated graphite exhibited the lowest friction coefficient and wear rate. The related mechanism was discussed.
引用
收藏
页码：214 / 222
页数：9
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