永磁场条件下45^#钢与GCr15钢摩擦磨损性能试验研究  

Experiments Research on Friction and Wear of 45 Steel and GCr15 Steel under the Condition of Permanent Magnetic Field

作　　者：文桥[1] 董霖[1] 杨杰[1] 刘志伟[1] 刘雄[1] 

机构地区：[1]西华大学机械工程学院,四川成都610039

出　　处：《润滑与密封》2016年第3期21-25,共5页Lubrication Engineering

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);西华大学人才培养与引进项目(R0920203);制造与自动化重点实验室(重点研究基地)开放课题(szjj2015-081)

摘　　要：基于HSR-2M高速往复摩擦磨损试验机,研究在永磁体磁场条件下滑动速度、载荷等参数对45#钢/GCr15钢摩擦副摩擦学性能的影响,通过磨痕形貌分析其磨损机制,并与无磁场条件下的试验结果进行对比。试验结果表明:磁场的引入可以在一定程度上减小摩擦因数和降低磨损率,证明磁场能够改善45#钢/GCr15钢摩擦副的摩擦学性能;增大滑动速度将降低摩擦因数和磨损率,增大载荷将降低摩擦因数,增加磨损率。无磁场时,摩擦副的摩擦磨损为典型的磨粒磨损,磨损系统的磨损率和摩擦因数较大;有磁场时,磨损形式主要为黏着磨损,摩擦因数和磨损率较小。Based on HSR?2M high?speed reciprocating friction and wear tester,the effects of sliding speed,load and oth?er parameters on the tribological behaviours of 45 steel and GCr15 steel friction pair was studied in the permanent magnet magnetic field working environment,and the results were contrastively analyzed with those without magnetic field.The wear mechanism was discussed by analyzing the wear scar morphology. The results show that the magnetic field can reduce the friction coefficient and wear rate to some extent,indicating that magnetic field can improve the friction and wear properties of 45 steel and GCr15 steel friction pair.With the sliding velocity increasing,the friction coefficient and wear rate are re?duced.With the load increasing,the friction coefficient is reduced,but the wear rate is increased.Without magnetic field, the wear is typical abrasive wear,worn surface is obvious furrows,and the wear system shows greater wear rate and friction coefficient.When a magnetic field is applied,it mainly is adhesive wear,and the friction coefficient and the wear rate is smaller.

关 键 词：磁场 摩擦磨损 滑动速度 载荷 

分 类 号：TH117.1[机械工程—机械设计及理论]