摘要
以Fe,C混合粉末为原料,FeS或镀镍FeS为固体润滑剂,通过粉末冶金工艺制备了FeS/铁基轴承材料的试样,研究镀镍FeS对试样显微组织、密度、硬度和摩擦磨损性能的影响,结果表明:FeS表面镀镍提高了FeS与基体的界面结合强度,增大了试样的密度和硬度;干摩擦条件下,含镀镍FeS试样摩擦表面形成的固体润滑膜更牢固、完整,黏着磨损减少,耐磨性提高;油润滑条件下,润滑油膜与FeS固体润滑膜可以协同润滑,提高了摩擦副间润滑膜的稳定性和承载能力,减摩耐磨性能更好。
FeS/iron-based bearing material samples are prepared by powder metallurgy process,with mixture of Fe and C powders as raw materials and FeS or nickel-plated FeS as solid lubricants.The effects of nickel plated FeS on microstructure,density,hardness and friction and wear properties of the samples are investigated.The results show that nickel plating on surface of FeS enhances the interface bonding strength between FeS and matrix,and increases the density and hardness of the samples;under dry friction condition,the solid lubricating film formed on friction surface of the samples containing nickel plated FeS is more solid and complete,the adhesive wear is reduced,and the wear resistance is improved;under oil lubrication condition,the lubricating oil film and FeS solid lubricating film can be lubricated cooperatively,improving the stability and load capacity of lubricating film between friction pairs,and achieving better anti-friction and wear resistance.
作者
郑海飞
尹延国
李蓉蓉
刘聪
ZHENG Haifei;YIN Yanguo;LI Rongrong;LIU Cong(Institute of Tribology,Hefei University of Technology,Hefei 230009,China)
出处
《轴承》
北大核心
2024年第8期40-47,共8页
Bearing
基金
国家自然科学基金资助项目(51575151)。
关键词
滑动轴承
固体润滑
镀镍
粉末冶金
孔隙率
摩擦系数
磨损量
plain bearing
solid lubrication
nickel plating
powder metallurgy
porosity
friction coefficient
wear loss
作者简介
郑海飞(1999-),男,硕士研究生,主要研究方向为机械摩擦磨损,E-mail:2876244861@qq.com;李蓉蓉(1994-),女,博士研究生,主要研究方向为自润滑材料制备与摩擦磨损性能,E-mail:lirongrongxl@sina.com;刘聪(1991-),男,博士,主要研究方向为表界面行为与自润滑轴承设计,E-mail:1396575946@qq.com。;通信作者:尹延国(1964-),男,教授,博士,主要研究方向为机械摩擦磨损与控制,E-mail:abyin@sina.com。
