Engineering Research Center for Nanomaterials Henan University Kaifeng 475004 China;
Engineering Research Center for Nanomaterials Henan University Kaifeng 475004 China;
Engineering Research Center for Nanomaterials Henan University Kaifeng 475004 ChinaInstitute of Pharmacy Henan University Kaifeng 475004 China;
Engineering Research Center for Nanomaterials Henan University Kaifeng 475004 China;
Engineering Research Center for Nanomaterials Henan University Kaifeng 475004 China;
Engineering Research Center for Nanomaterials Henan University Kaifeng 475004 China;
steel-steel sliding contact; magnetic ionic liquid; magnetic fluid; lubricant; tribological property; lubrication mechanism;