| 载荷对外加颗粒双金属复合材料摩擦性能的影响 |
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| 引用本文： | 李秀青,宋延沛.载荷对外加颗粒双金属复合材料摩擦性能的影响[J].特种铸造及有色合金,2011,31(1). |
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| 作者姓名： | 李秀青 宋延沛 |
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| 作者单位： | 河南科技大学材料科学与工程学院 |
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| 摘 要： | 采用外加高碳铬铁颗粒法和离心复合铸造法制备了高铬铸铁/球铁双金属复合材料,并借助MMS-1G高速销盘摩擦磨损试验机、光学显微镜、扫描电镜(SEM)和X射线衍射仪(XRD)研究了表面耐磨层的微观组织和在不同载荷下的摩擦性能。结果表明,表面耐磨层的微观组织为回火马氏体+Cr7C3+残余奥氏体+少量Cr23C6和Cr3C;在40m/s摩擦速度下,随着载荷的不断增加,摩擦因数呈下降趋势,磨损率几乎呈线性增加;磨损机制主要表现为磨粒磨损、氧化磨损和粘着磨损。
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| 关 键 词： | 双金属复合材料 高铬铸铁 球铁 摩擦因数 |
Effects of Loading on the Tribological Property of Particle Reinforced Bimetal Composites |
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| Li Xiuqing,Song Yanpei.Effects of Loading on the Tribological Property of Particle Reinforced Bimetal Composites[J].Special Casting & Nonferrous Alloys,2011,31(1). |
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| Authors: | Li Xiuqing Song Yanpei |
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| Affiliation: | Li Xiuqing,Song Yanpei(School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang,China) |
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| Abstract: | A high Cr cast iron/nodular iron bimetal composites were prepared with adding high carbon ferro-chrome particles by centrifugal composite method.Microstructure of surface wear resistant layer on the composites and its tribological behavior under different loadings were investigated by MMS-1G frictional and wear tester,OM(optical microscope),SEM(scanning electron microscope)and XRD(X-ray diffraction).The results show that microstructure of the surface wear resistant layer is composed of tempered martensite,C... |
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| Keywords: | Bimetal Composites High Cr Cast Iron Graphite Cast Iron Frictional Coefficient |
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