Optimization of Tribological Properties and Its Wear Mechanism of a New Type Friction Materials with Response Surface Methodology
XU Xiang1,2,3, YANG Ming1,2,3, LIANG Yi-long1,2,3, ZHANG Shi-wei1,2,3, GONG Qian-jiang1,2,3
1. College of Materials Science and Metallurgy, Guizhou University, Guiyang 550025, China;
2. The Key Laboratory for Microstructure of Materials and Mechanical Behavior, Guiyang 550025, China;
3. The National & Local Joint Engineering Laboratory for High-performance Metal Structure Materials and Advanced Manufacture Technology, Guiyang 550025, China
Abstract：Preparation technology of an organic high friction composite materials was optimized by RSM(response surface methodology) and Design-Expert software. The friction tests were performed by MMS-2A friction tester. The quadratic regression model was established between process parameters and friction coefficient and wear rate. The results show that the correlation between predictive value and test value of the quadratic regression models has good fitting precision which are 91.97% and 87.85% respectively. There is strong interaction between molding temperature and holding time in the hot-pressing technology. Macro and micro surface morphologies were observed by the metallurgical microscope, scanning electron microscope, 3D measuring laser microscopy and hardness tester. The interfacial properties of the composites are affected by hot pressing process, which determine the tribological properties of composites. The optimum process parameters can be optimized by response surface methodology with the analysis of the wear mechanism, and the optimum hot pressing process are 19-25MPa,165-174℃,18-22min.
徐祥, 杨明, 梁益龙, 张世伟, 龚乾江. 响应面法对一种新型摩擦材料的性能优化及其磨损机理[J]. 材料工程, 2018, 46(9): 101-108.
XU Xiang, YANG Ming, LIANG Yi-long, ZHANG Shi-wei, GONG Qian-jiang. Optimization of Tribological Properties and Its Wear Mechanism of a New Type Friction Materials with Response Surface Methodology. Journal of Materials Engineering, 2018, 46(9): 101-108.
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