油润滑下La2O3-Mo5Si3/MoSi2复合材料与钢对磨时的摩擦磨损性能
Friction and Wear Properties of La2O3-Mo5Si3/MoSi2 Composites Against Steels under Oil Lubrication
摘 要
用摩擦磨损试验机测定了油润滑下0.8%La2O3-5%Mo5Si3/MoSi2复合材料与不同钢材配副时的摩擦磨损性能, 采用扫描电镜分析了磨损表面形貌, 探讨了其磨损机理。结果表明: 油润滑条件下, 复合材料与调质45钢、淬火45钢和CrWMn钢配副时, 摩擦因数均在0.1以下, 磨损率均低于10-3 mm3·min-1; 与CrWMn钢配副时具有最低的摩擦因数和磨损率;复合材料与调质、淬火45钢对磨时的磨损机理为磨粒磨损, 与CrWMn钢对磨时的为磨粒磨损和点蚀。
钢
摩擦磨损
油润滑
稀土
molybdenum disilicide
steel
friction and wear
oil lubrication
rare earth
Abstract
Friction and wear properties of 0.8%La2O3-5%Mo5Si3/MoSi2 composites against different steels were determined by a friction and wear tester under oil lubrication. The worn-out surface was observed by using scanning electron microscopy, and the wear mechanism was discussed. The results show that the friction coefficient was below 0.1 when the composite grinding with quenched and tempered 45 steel, quenched steel and CrWMn steel, and the wear rate of composites was below 10-3 mm3·min-1. The friction coefficient and wear rate when composites grinding with CrWMn steel were the lowest. The wear mechanism of the composites grinding with quenched and tempered 45 steel and quenched steel was abrasive wear, and when grinding with CrWMn steel, the wear mechanism was abrasive wear and spot corrosion.
中图分类号 TG146.4
所属栏目
基金项目 国家自然科学基金资助项目(51071133, 50405041); 湖南省高校科技创新团队支持计划资助项目; 湖南省科技计划资助项目(2010GK3144)
收稿日期 2010/8/10
修改稿日期 2011/4/6
网络出版日期
作者单位点击查看
备注唐思文(1980-), 男, 湖南长沙人, 讲师, 硕士。
引用该论文: TANG Si-wen,ZHANG Hou-an,YAN Jian-hui,JIANG Ling-li. Friction and Wear Properties of La2O3-Mo5Si3/MoSi2 Composites Against Steels under Oil Lubrication[J]. Materials for mechancial engineering, 2011, 35(9): 72～74
唐思文,张厚安,颜建辉,蒋玲莉. 油润滑下La2O3-Mo5Si3/MoSi2复合材料与钢对磨时的摩擦磨损性能[J]. 机械工程材料, 2011, 35(9): 72～74
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参考文献
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【3】PETROVIC J J. Toughening strategies for MoSi2-based high temperature structural silicides[J]. Intermetallics,2000,8(9/11):1175-1182.
【4】KATSUUKI Y, TOSHIO M, KAZUHIRO N. High temperature oxidation of Mo-Si-X intermetallics (X=Al,Ti,Ta,Zr and Y)[J]. Intermetallics,1995,3(3):243-251.
【5】SHARIF A A, MISRA A, MITECHELL T E. Deformation mechanisms of polycrystalline MoSi2 alloyed with 1at% Nb[J]. Materials Science and Engineering A,2003,358(1/2):279-287.
【6】ITO K, YANO T, NAKAMOTO T, et al.Plastic deformation of MoSi2 and WSi2 single crystals and directionally solidified MoSi2-based alloys[J]. Intermetallics,1996,47(3):937-949.
【7】ZHENG L, JIN Y, LI P. High-temperature mechanical behavior and microstructure of SiC-whisker-reinforced MoSi2 composites[J]. Composites Science and Technology,1997,57(4):463-469.
【8】MENG J, LU J, WANG J, et al.Preparation and properties of MoSi2 composites reinforced by TiC,TiCN, and TiB2[J]. Materials Science and Engineering A,2005,396(1/2):277-284.
【9】ZHANG H, WANG D, CHEN S, et al.Toughening of MoSi2 doped by La2O3 particles[J]. Materials Science and Engineering A,2003,345(1/2):118-121.
【10】ZENG Y, XU C, WATANABE T. The effects of carbon addition on the mechanical properties of MoSi2-TiC composites[J]. Ceramics International,2002,28(4):387-392.
【11】张厚安,陈平,颜建辉,等.La2O3和WSi2增强MoSi2基复合材料的摩擦磨损性能研究[J].摩擦学学报,2005,25(3): 229-233.
【12】艾云龙,刘孜谦,刘长虹,等.SiCP/ZrO2-MoSi2纳米复合陶瓷磨损特性的研究[J].金属热处理,2007,32(1):56-58.
【13】唐思文,张厚安,刘心宇.La2O3对Mo5Si3/MoSi2复合材料的改性研究[J].中国稀土学报,2007,25(2):195-200.
【14】唐思文,张厚安,刘心宇.干摩擦条件下稀土-Mo5Si3/MoSi2复合材料的摩擦磨损性能[J].矿冶工程,2006,26(2):89-91.
【15】布尚 B.摩擦学导论[M],葛世荣,译.北京:机械工业出版社,2006.
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