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工程设计学报
Chinese Journal of Engineering Design  2005, Vol. 12 Issue (5): 308-312    DOI:
    
Research on tribology property of Si3N4 ceramic and chilled iron under oilless lubrication
 XIANG  Zhong-Xia1, DONG  Gang2, SHEN  Zhao-Guang1, LIN  Bin1
1. School of Mechanical Engineering, Tianjin University, Tianjin 300072, China;
2. School of Mechatronics, Tianjin Professional College, Tianjin 300402, China
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Abstract  A series of tests on friction and wear of Si3N4 ceramic and chilled iron under oilless lubrication were conducted on MG200 Friction Wear Machine by adopting blockondisc wear test method, during which the values of wear rate and friction coefficient of Si3N4 ceramic and chilled iron were achieved. Additionally the friction and wear behaviors were analyzed through SME images and percentage of different chemical elements distributed on friction surface. The result indicated wear rates of Si3N4 ceramic and friction coefficient between Si3N4 ceramic and chilled iron under oilless lubrication are much less than wear rates and friction coefficient under dry friction condition. Wear rate of Si3N4 ceramic rose with the increase of loads between Si3N4 ceramic and chilled iron while the effect of relative sliding speed on wear rate of Si3N4 ceramic is not as significant as that of load. For the friction coefficient between Si3N4 ceramic and chilled iron, it decreased with the increase of relative sliding speed and the change on load had little influence on it. Wear of Si3N4 ceramic was caused by interaction of chemical wear, abrading wear and particle’s peeling off, among which the chemical one was dominant.

Key words： Si3N4 ceramic      chilled iron      oilless lubrication      dry friction      friction coefficient      wear rate     
Published: 28 October 2005
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XIANG Zhong-Xia
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LIN Bin
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XIANG Zhong-Xia, DONG Gang, SHEN Zhao-Guang, LIN Bin. Research on tribology property of Si3N4 ceramic and chilled iron under oilless lubrication. Chinese Journal of Engineering Design, 2005, 12(5): 308-312.

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https://www.zjujournals.com/gcsjxb/     OR     https://www.zjujournals.com/gcsjxb/Y2005/V12/I5/308


微量润滑条件下Si3N4陶瓷白口铸铁的摩擦学性能研究

采用块盘式摩擦磨损试验方法，在MG200摩擦磨损试验机上对Si3N4陶瓷白口铸铁摩擦副进行了微量润滑条件下的摩擦磨损试验，同时根据试件的SME照片和能谱成分分析了摩擦磨损机理，为陶瓷材料的制备及减少磨损提供理论依据。试验和分析结果表明：微量润滑条件下Si3N4陶瓷的磨损率和摩擦系数要比干摩擦条件下小得多；Si3N4陶瓷的磨损率随载荷的增大而增大，滑动速度对磨损率的影响要小于载荷对其的影响；Si3N4陶瓷白口铸铁的摩擦系数随速度的增大而减小，载荷的变化对摩擦系数的影响不大；Si3N4陶瓷的磨损是化学磨损、机体物质脱落和磨粒磨损共同作用的结果，其中化学磨损起主导作用。

关键词： Si3N4陶瓷,  白口铸铁,  微量润滑,  干摩擦,  摩擦系数,  磨损率 
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