直流稳恒磁场条件下45钢小位移摩擦磨损试验研究  

Experimental research on the friction and wear properties of 45 steel under the DC magnetic field

作　　者：董霖[1] 刘雄[1] 刘志伟[1] 杨杰[1] 文桥[1] 

机构地区：[1]西华大学机械工程学院西华大学流体及动力机械教育部重点实验室,四川成都610039

出　　处：《中国工程机械学报》2016年第3期263-266,共4页Chinese Journal of Construction Machinery

基　　金：国家人社部留学回国人员科技活动择优资助项目(2013年);四川省教育厅重点科研项目(13ZA0021);西华大学省部级学科平台制造与自动化重点实验室(重点研究基地)开放课题(szjj2015-081);流体及动力机械教育部重点实验室研究基金(西华大学JYBF-YQ-1;szjj2016-010)

摘　　要：基于HSR-2M高速式往复摩擦磨损试验机,试验了直流稳恒磁场条件,往复速度、法向载荷、往复行程、磁场强度等对45钢的摩擦系数和磨损量的影响,通过磨痕形貌分析了其磨损机制.试验结果表明:磨损主要为黏着磨损、剥落并伴有氧化磨损;载荷的增大使得摩擦热增多,摩擦副表面的塑性增强,磨损量加大;同时摩擦副表面接触区域的真实接触面积变大,造成摩擦系数减小;试验的研究结果对在施加直流稳恒磁场情况下45钢摩擦磨损性能的正确评估有重要的意义.Based on HSR-2M high-speed reciprocating friction and wear tester,the effects of reciprocating velocity, normal force, reciprocating sliding distance and magnetic field intensity on the friction and wear properties of 45 steel were studied under the I）C magnetic field,and the wear mechanism was analyzed by the worn surface morphologies. The experimental results show that the wear is mainly adhesive wear, spalling phenomenon and oxidation wear. The increase of load makes the heat of friction increase, The plasticity of the friction pair surface is increased, the wear quantity is increased. At the same time, the real contact area of the surface of the friction pair becomes larger, and the friction coefficient decreases. The experimental results are valuable in the suitable evaluation of the friction and wear properties of 45 steel under the DC magnetic field.

关 键 词：45钢 直流稳恒磁场 摩擦磨损 法向载荷 

分 类 号：TH117[机械工程—机械设计及理论]