Research on Dry Friction and Wear Properties of Al–50% Si Alloy
NIU Qiulin1, ZHANG Shenzhen2, JING Lu1, RONG Jie1, QIU Xinyi1, LI Pengnan1
1. School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;
2. Hunan Southern Aerospace Industry Co., Ltd., Zhuzhou 412000, China
The dry friction and wear tests of cemented carbide and Al–50% Si alloy were carried out to explore effects of load and sliding speed on the friction and wear properties of Al–50% Si alloy and wear mechanism of the cemented carbide. The results show that friction coefficient changes in three stages with time: running-in stage, transition stage and stable stage. The wear amount of Al–50% Si alloy increases with the increase of load and sliding speed. The wear mechanism of Al–50% Si alloy at low sliding load is delamination wear; when the load exceeds 50 N, the wear mechanism of Al–50% Si alloy changes to “abrasive wear+delamination wear”. At low sliding speed, the wear mechanism of Al–50% Si alloy is “delamination wear + abrasive wear”; with the increase of sliding speed, the wear mechanism is mainly delamination wear. Moreover, the surface of cemented carbide ball has wear features of scratch, adhesion, and delamination, and wear mechanism of adhesive wear and abrasive wear.
牛秋林，张深圳，荆露，戎杰，邱新义，李鹏南. Al–50%Si合金干摩擦磨损性能研究[J]. 航空制造技术, 2025, 68(6): 115-122.
NIU Qiulin, ZHANG Shenzhen, JING Lu, RONG Jie, QIU Xinyi, LI Pengnan. Research on Dry Friction and Wear Properties of Al–50% Si Alloy[J]. Aeronautical Manufacturing Technology, 2025, 68(6): 115-122.
2025, 
