TiB2-TiN-Ni-Csf陶瓷刀具与316L奥氏体不锈钢间的干摩擦磨损性能研究
2019-03-14
作者：曹磊，宋金鹏，高杰
单位：太原理工大学机械工程学院；精密加工山西省重点实验室
摘要：研究了TiB2-TiN-Ni-Csf（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。
关键词：TiB2-TiN-Ni-Csf陶瓷刀具；摩擦系数；磨损机理
中图分类号：TG711；TH161文献标志码：ADOI：10.3969/j.issn.1000-7008.2019.03.005
Tribological Properties of TiB2TiNNiCsf Ceramic Tool Material Sliding
Against 316L Austenitic Stainless Steel
Cao Lei，Song Jinpeng，Gao Jie
Abstract:Tribological properties of TiB2TiNNiCsf(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.
Keywords:TiB2TiNNiCsf ceramic tool；friction coefficient；wear mechanism