| Tribological Properties of MoSi2 Against AISI10045 Steel Under Sliding Friction |
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| 作者姓名： | CHEN Ping ZHANG Hou-an CHEN Hua-hui |
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| 作者单位： | [1]School of Mechanical Electronic and Information Engineering, China University of Mining ＆ Technology, Beijing 100083, China [2]Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China |
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| 摘 要： | MoSi2 samples were prepared by a self-propagating high-temperature synthesis （SHS） and a hot-press technique. The sliding friction and wear properties of intermetallic MoSi2 against AISI10045 steel under dry friction and oil lubrication conditions were investigated with a MRH-5A type ring-on-block friction and wear tester. The elemental composition, microstructure and worn surface morphology of the MoSi2 material were observed and analyzed by means of scanning electron microscopy （SEM） and X-ray diffraction （XRD）. The synthetic parameter pv value reflecting friction work, was used to discuss the tribological properties of MoSi2 material. The results show that 1） oil lubrication can obviously improve the tribological properties of MoSi2, 2） the bigger the pv value, the greater the antifriction and the abrasive resistance of MoSi2 under oil lubrication, 3） with an increase in the pv value, the wear mechanism of MoSi2 material under dry sliding friction is the fatigue fracture and adhesive wear and 4） under oil lubrication the wear mechanism is mainly fatigue pitting.
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| 关 键 词： | 二硅化钼 滑动摩擦 磨损机制 AISI10045钢 |
| 收稿时间： | 2006-02-15 |
| 修稿时间： | 2006-04-28 |
Tribological Properties of MoSi2 Against AISI10045 Steel Under Sliding Friction |
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| CHEN Ping ZHANG Hou-an CHEN Hua-hui.Tribological Properties of MoSi2 Against AISI10045 Steel Under Sliding Friction[J].Journal of China University of Mining and Technology,2006,16(3):283-286. |
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| Authors: | CHEN Ping ZHANG Hou-an CHEN Hua-hui |
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| Abstract: | MoSi2 samples were prepared by a self-propagating high-temperature synthesis (SHS) and a hot-press technique. The sliding friction and wear properties of intermetallic MoSi2 against AISI10045 steel under dry friction and oil lubrication conditions were investigated with a MRH-5A type ring-on-block friction and wear tester. The elemental composition, microstructure and worn surface morphology of the MoSi2 material were observed and analyzed by means of scanning electron microscopy (SEM) and X-ray diffraction (XRD). The synthetic parameter pv value reflecting friction work, was used to discuss the tribological properties of MoSi2 material. The results show that 1) oil lubrication can obviously improve the tribological properties of MoSi2, 2) the bigger the pv value, the greater the antifriction and the abrasive resistance of MoSi2 under oil lubrication, 3) with an increase in the pv value, the wear mechanism of MoSi2 material under dry sliding friction is the fatigue fracture and adhesive wear and 4) under oil lubrication the wear mechanism is mainly fatigue pitting. |
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| Keywords: | molybdenum disilicide sliding friction wear mechanism pv value |
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