| High-temperature wear behaviors of MoSi2 under different loads |
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| 作者姓名： | 胡小平 谭伟成 唐思文 张厚安 黄之初 |
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| 作者单位： | [1]School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan 430070, China [2]Advanced Materials Synthesis and Applied Technology Laboratory, Hunan University of Science and Technology, Xiangtan 411201, China |
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| 基金项目： | Project（50405041） supported by the National Natural Science Foundation of China; Project（2007） supported by the 0pening Research Foundation State Key Laboratory of Powder Metallurgy of China |
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| 摘 要： | MoSi2 was prepared by SHS, pressed at room-temperature and then vacuum sintered at 1 500 ℃ for 1 h. The tribological properties of MoSi2 against Al2O3 were investigated by using an XP-5 type High Temperature Friction and Wear Tester. Micrographs and phases of the worn surface of MoSi2 were observed by SEM with EDS and X-ray diffraction. The results show that the wearing process of MoSi2 at high temperature exists three stages： running-in, interim and steady periods. MoSi2 exhibits preferable wear resistance when the load is lower than 50 N. Adhesion and oxidation wear exists widely at elevated temperature; however besides these, with increasing the load, the main wear mechanisms of MoSi2 could be changed from adhesion, plastic forming to fatigue fracture in turn.
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| 关 键 词： | 摩擦学特性 耐磨机械装置 合金 二硅化钼 |
| 收稿时间： | 2007-07-15 |
| 修稿时间： | 2007-09-10 |
High-temperature wear behaviors of MoSi2 under different loads |
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| HU Xiao-ping, TAN Wei-cheng, TANG Si-wen, ZHANG Hou-an, HUANG Zhi-chu.High-temperature wear behaviors of MoSi2 under different loads[J].Transactions of Nonferrous Metals Society of China,2007,17(A01):60-63. |
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| Authors: | HU Xiao-ping TAN Wei-cheng TANG Si-wen ZHANG Hou-an HUANG Zhi-chu |
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| Abstract: | |
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| Keywords: | MoSi2 tribological property wear mechanism |
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