自润滑微孔金属陶瓷的减摩性设计  

Antifriction Design of Self-lubricating Microporous Cermets

作　　者：燕松山[1] 孙明明 解芳[2] 胡瑞 YAN Songshan;SUN Mingming;XIE Fang;HU Rui(School of Mechanical and Electronic Engineering,Wuhan University of Technology,Wuhan 430070,China;School of Mechanical and Automotive Engineering,Nanyang Institute of Technology,Nanyang 473004,China;School of Mechanical and Electronic Engineering,Nanchang Institute of Technology,Nanchang 330029,China)

机构地区：[1]武汉理工大学机电工程学院,湖北武汉430070 [2]南阳理工学院机械与汽车工程学院,河南南阳473004 [3]南昌工程学院机械与电气工程学院,江西南昌330029

出　　处：《数字制造科学》2022年第1期51-55,共5页

基　　金：国家自然科学基金资助项目(51765044,517605230)

摘　　要：在分析了熔渗制备高温发汗自润滑材料对微孔金属陶瓷基体微观结构、强度和减摩性能需求的基础上,针对高温发汗自润滑材料的应用工况,对微孔金属陶瓷基体润滑形式、微孔结构和材料组分进行了设计研究,并制备出了TiB_(2)-FeCrWMoV微孔金属陶瓷基体材料。研究表明:基于本文设计原则制备的微孔金属陶瓷材料在保持较好贯通孔隙结构的同时,具有优异的高温摩擦磨损特性。在环境温度为600℃时,平均摩擦系数为0.32,磨损率为2.8×10^(-5)mm^(3)/(N·m),验证了设计原则的有效性。In this paper,the requirements of microstructure,strength and antifriction properties of microporous cermet matrix for high temperature sweating self-lubricating materials prepared by infiltration are discussed.Based on the application condition of high-temperature perspiration self-lubricating material,the lubrication form,micropore structure and the material composition of microporous cermet matrix were designed and studied.TiB_(2)-FeCrWMoV microporous cermet matrix material was prepared.The results show that the microporous cermet materials prepared based on the design principles of this paper have excellent friction and wear properties at high temperature while maintaining the hollow porous structure.The design principle has been verified under the conditions in terms of the ambient temperature is 600℃,the average friction coefficient is 0.32,and the wear rate of is 2.8×10^(-5)mm^(3)/(N·m).

关 键 词：高温自润滑材料 微孔金属陶瓷 减摩性设计 原位反应 

分 类 号：TH117[机械工程—机械设计及理论] TG148[一般工业技术—材料科学与工程]