| Ti_3SiC_2/PM304摩擦副的高温摩擦学性能 |
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| 引用本文： | 陈祖均,任书芳,王静波,贾均红,吕晋军.Ti_3SiC_2/PM304摩擦副的高温摩擦学性能[J].摩擦学学报,2010,30(2):123-127. |
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| 作者姓名： | 陈祖均 任书芳 王静波 贾均红 吕晋军 |
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| 作者单位： | 1. 中国科学院兰州化学物理研究所 固体润滑国家重点实验室，甘肃 兰州730000；2. 中国科学院 北京研究生院， 北京 100039;1. 中国科学院兰州化学物理研究所 固体润滑国家重点实验室，甘肃 兰州730000；2. 中国科学院 北京研究生院， 北京 100039;中国科学院兰州化学物理研究所 固体润滑国家重点实验室，甘肃 兰州730000;中国科学院兰州化学物理研究所 固体润滑国家重点实验室，甘肃 兰州730000;中国科学院兰州化学物理研究所 固体润滑国家重点实验室，甘肃 兰州730000 |
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| 基金项目： | 国家自然科学基金面上项目（50675216）和中国科学院重大院方向性项目（YYYJ-0913） |
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| 摘 要： | 本文考察了Ti3SiC2/PM304摩擦副从室温到630℃范围的摩擦磨损性能,并与Ni-Cr合金/PM304摩擦副的摩擦磨损性能进行了对比.结果表明:Ti3SiC2/PM304摩擦副具有比Ni-Cr合金/PM304摩擦副更好的摩擦磨损性能,特别是在400～630℃的温度范围内,Ti3SiC2/PM304摩擦副具有优异的摩擦磨损性能.从室温到300℃,Ti3SiC2/PM304摩擦副的磨损机制为Ti3SiC2晶粒拔出、脱落后与转移的PM304形成机械混合层,随着环境温度的升高机械混合作用加强.在400～630℃范围内,摩擦界面的机械混合作用受到显著抑制,在Ti3SiC2磨损表面形成富集银的转移润滑膜,而转移润滑膜的连续性对摩擦副的摩擦磨损性能影响较大.
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| 关 键 词： | Ti3SiC2 PM304 摩擦 磨损 |
Tribological Properties of Ti3SiC2/PM304 Tribo-pair at Elevated Temperatures |
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| CHEN Zujun,REN Shufang,WANG Jingbo,JIA Junhong and LU Jinjun.Tribological Properties of Ti3SiC2/PM304 Tribo-pair at Elevated Temperatures[J].Tribology,2010,30(2):123-127. |
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| Authors: | CHEN Zujun REN Shufang WANG Jingbo JIA Junhong and LU Jinjun |
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| Affiliation: | 1. State Key Laboratory of Solid lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
2. Graduate School, Chinese Academy of Sciences, Beijing 100039, China;1. State Key Laboratory of Solid lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
2. Graduate School, Chinese Academy of Sciences, Beijing 100039, China;State Key Laboratory of Solid lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;State Key Laboratory of Solid lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;State Key Laboratory of Solid lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China |
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| Abstract: | The tribological properties of Ti3SiC2 pin sliding against a self-lubricating composite PM304 disk at ambient temperature up to 630?C were investigated. Comparison was made on the tribological properties of Ti3SiC2/PM304 and Ni-Cr alloy/PM304 tribo-pairs. The findings indicated that Ti3SiC2/PM304 tribo-pair exhibited better tribological property than that of Ni-Cr alloy/PM304 tribo-pair at elevated temperatures. Ti3SiC2/PM304 tribo-pairs showed excellent tribological properties from 400?C to 630?C. Mechanical mixed layers on the worn surfaces of both PM304 and Ti3SiC2 were found at room temperature to 300?C as a result of pullout of Ti3SiC2 grains and transference of PM304. At 400?C to 600?C, mechanical mixing was greatly inhibited. Lubricious transfer layer, which was Ag-rich, was corresponding to the good tribological behavior of the Ti3SiC2/PM304 tribo-pair. And the integrity of the lubricious transfer layer has pronounced influence on the friction and wear of Ti3SiC2/PM304 tribo-pair. |
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| Keywords: | Ti3SiC2 PM304 friction wear |
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