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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

抗磨添加剂对Si3N4/45#钢摩擦副摩擦学性能的影响

赵兴中; 刘家浚; 朱宝亮; 薛群基+; 欧阳锦林+   

  1. 清华大学摩擦学研究所; 北京100084; 中科院兰州化物所固体润滑开放实验室; 兰州730000
  • 收稿日期:1996-01-11 修回日期:1996-03-11 出版日期:1997-02-20 网络出版日期:1997-02-20

Effects of Anti－Wear Additives on the Friction and Wear of Si3N4／1045 Steel Sliding Contacts

ZHAO Xingzhong; LIU Jiajun; ZHU Baoliang; XUE Qunji+; OUYANG Jinlin+   

  1. Tribology Research Institute Tsinghua Universyty Beijing 100084 China; +Laboratory of Solid Lubrication; Lanzhou Institute of Chemical Physics Lanzhou 730000 China
  • Received:1996-01-11 Revised:1996-03-11 Published:1997-02-20 Online:1997-02-20

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摘要： 近年来Si3N4基陶瓷刀具在铸铁的切削加工中已得到较为成功的应用.但在加工碳钢等材料时，却产生较严重的化学磨损.不仅如此，干切削条件下陶瓷刀具和金属工件接触区产生的高温加剧了刀具与工件接触面间元素相互扩散，Si3N4颗粒的氧化及其氧化产物Si3O2的熔融，会大大加剧陶瓷材料的粘着磨损和微断裂磨.本试验采用润滑剂的润滑、冷却作用，尤其极压抗磨添加剂的摩擦化学作用来减小陶瓷的磨损率.在销-盘试验机上考察了ZDDP和TCP两种常用抗磨添加剂的性能.结果表明，两种添加剂均具有很好的减摩抗磨效果.分析认为，摩擦过程中添加剂发生了摩擦化学反应，其摩擦化学反应产物起到了很好的边界润滑作用，减小了摩擦系数和磨损率.

关键词: 陶瓷, 抗磨添加剂, 摩擦化学, 粘着磨损

Abstract: Si3N4－based ceramics were recently used for machining cast iron at very high speeds.However，they were found to be unsuitable for machiningsteels because of the severe wear ofthe ceramic. In sliding contacts.The tests were carried out on a pin－on－disk tribometer. The test results showed that the lubricants containing additives could effectively reduce the friction and wear of Si3N4 ceramics. The between the rubbing surfaces. The element interdiffusion and adhesion between the rubbing surfaces were prevented or greatly reduced.

Key words: ceramics, additives, tribochemistry, adhesive wear, microfracture