反应烧结Ti<sub>3</sub>SiC<sub>2</sub>材料的载流摩擦磨损性能

刘刚田; 肖琪聃; 吕振林; 张永振

反应烧结Ti₃SiC₂材料的载流摩擦磨损性能

1.
河南科技大学,河南洛阳 471003
2.
西安理工大学,陕西西安 710048

基金项目:

The project was supported by National Natural Science Foundation of China (U1034002) and National Key Technolog R&D Program of Henan Province, China(112102210517).
国家自然科学基金联合基金(U1034002)和河南省科技攻关项目(112102210517)资助.

详细信息

中图分类号: TB331
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出版历程
- 收稿日期: 2011-11-28
- 修回日期: 2012-03-01

Current-Carrying Friction and Wear Characteristics of Ti₃SiC₂ by Reactive Sintering

1.
Henan University of Science&Technology, Luoyang 471003, China
2.
Xi'an University of Technology, Xian 710048, China

摘要

摘要: 采用HST-100型摩擦磨损试验机,研究了载流条件下法向载荷和电流对Ti₃SiC₂材料摩擦磨损性能的影响,同时借助JSM-6700F型扫描电子显微镜研究了Ti₃SiC₂材料的磨损机理.结果表明:当电流为0 A时,Ti₃SiC₂材料磨损主要以机械磨损为主,随着载荷的增加,摩擦系数逐渐减小,在120 N时达到最小值0.32.在载流条件下,Ti₃SiC₂材料磨损主要以电弧烧蚀和机械磨损为主,随法向载荷的增加摩擦率逐渐减小,在120 N时磨损率接近于非载流条件下单纯的机械磨损量2.2×10^-6 mm³/(N·m).在高载荷和不同电流条件下,Ti₃SiC₂材料均表现出良好的载流摩擦磨损性能.
- Ti₃SiC₂ /
- 摩擦系数 /
- 摩擦磨损 /
- 磨损率
Abstract: The current carrying friction and wear characteristics of Ti₃SiC₂ are investigated at different loads and electric currents by using an HST-100 friction and wear testing machine. Scanning electron microscopy is used for the analysis of sample worn surface configuration and determination of wear mechanism. The results show that without electric current the wear mechanism of Ti₃SiC₂ is mainly mechanical wear, the friction coefficient reduces with increasing load to a minimum value of 0.32 at a load of 120 N. Under the current carrying conditions, the main wear mechanisms of Ti₃SiC₂ are arc erosion and mechanical wear, the wear rate of the Ti₃SiC₂ decreases with increasing load to a lowest value of 2.2×10^-6 mm³/(N·m) at a load of 120 N, which is close to that under the no current carrying conditions. Ti₃SiC₂ shows good current carrying tribological properties under high load and different current.
- Ti₃SiC₂ /
- friction coefficient /
- friction and wear /
- wear rate

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参考文献(9)

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