直流稳恒磁场对45钢摩擦磨损性能的影响  

Effect on Friction and Wear Behaviour of 45 Steel in Direct Current Constant Magnetic Field

作　　者：商剑[1] 张永振[1] 邱明[2] 徐永智[2] 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471003 [2]河南科技大学机电工程学院,河南洛阳471003

出　　处：《材料工程》2009年第11期4-7,13,共5页Journal of Materials Engineering

基　　金：国家自然科学基金资助项目(50775066);国家973资助项目(2007CB607603)

摘　　要：大气条件下,研究不同强度的直流稳恒磁场对45钢干滑动摩擦磨损性能的影响。结果表明:与无磁场条件下相比,材料的摩擦系数降低,磨损量明显减少,磨损表面光滑,磨屑细化。微观分析表明,45钢在磁场条件下磨损后,表面生成更多的氧,认为氧化磨损及磨屑的润滑作用是磁场降低摩擦系数、减轻磨损的主要原因。The influence of D C constant magnetic field on tribological behaviour of 45 steel pin against disc in atmosphere was investigated. The results indicated that the wear loss decreased and friction coefficient went down, the worn surfaces were smooth and debris were fine obviously with a magnetic field. Microscopic analysis by SEM and EDS showed that more oxide-protective film formed on worn surface in the presence of a magnetic field. Oxidative wear mechanism and lubricated effect of debris were stated, which played an important role during the friction and wear.

关 键 词：直流磁场 摩擦磨损 磁场强度 氧化 

分 类 号：TH117.3[机械工程—机械设计及理论] TG142[一般工业技术—材料科学与工程]