TiB_2-TiN-Ni-C_(sf)陶瓷刀具与316L奥氏体不锈钢间的干摩擦磨损性能研究  

Tribological Properties of TiB_2-TiN-Ni-C_(sf) Ceramic Tool Material Sliding Against 316L Austenitic Stainless Steel

作　　者：曹磊[1] 宋金鹏[1] 高杰 Cao Lei;Song Jinpeng;Gao Jie

机构地区：[1]太原理工大学机械工程学院精密加工山西省重点实验室

出　　处：《工具技术》2019年第3期24-27,共4页Tool Engineering

基　　金：国家自然科学基金(51875388;51405326)

摘　　要：研究了TiB_2-TiN-Ni-C_(sf)(TTNC)陶瓷刀具材料与316L奥氏体不锈钢间的摩擦磨损性能,结果表明:当载荷为65N时,随着滑动速度从6m/min增大到15m/min,对磨材料间的摩擦系数和TTNC陶瓷刀具材料的磨损率逐渐减小;当滑动速度为15m/min时,载荷由55N增加到60N时,对磨材料间的摩擦系数和TTNC陶瓷刀具材料的磨损率增加缓慢;当载荷由60N增加到70N时,摩擦系数与磨损率急剧增加。磨损后的TTNC陶瓷刀具材料表面留有犁沟、片层结构、凹坑以及撕裂面,TTNC陶瓷刀具材料的磨损机理为磨粒磨损和粘着磨损。Tribological properties of TiB 2-TiN-Ni-Csf(TTNC) ceramic tool material sliding against 316L austenitic stainless steel have been studied.The results show that when the load is 65N and the sliding speed increases from 6m/min to 15m/min,the friction coefficient between these two materials and wear rate of TTNC ceramic tool material decreased;when the sliding speed is 15m/min and the load increases from 55N to 60N,friction coefficient and wear rate increased slowly;however,when the load increases from 60N to 70N at the sliding speed of 15m/min,the friction coefficient and wear rate increases dramatically;ploughs,lamellar structure,pits and tearing surfaces are left in the wear surface of TTNC ceramic tool material;the wear mechanism of this ceramic includes abrasive wear and adhesive wear.

关 键 词：TiB2-TiN-Ni-Csf陶瓷刀具 摩擦系数 磨损机理 

分 类 号：TG711[金属学及工艺—刀具与模具] TH161[机械工程—机械制造及自动化]