1. 中国地质大学(北京) 工程技术学院, 北京 100083；2. 中国航空工业集团公司北京航空精密机械研究所 精密制造技术航空科技重点实验室, 北京 100076;3. 中国地质大学(北京) 深钻装备国际联合研究中心， 北京 100083；4. 北京工商大学 材料与机械工程学院, 北京 100048
出版日期:2018-05-28发布日期:2018-05-28基金资助:国家自然科学基金项目(41572362，U1537108)，北京市自然科学基金项目(3172026)，装备预研中航工业联合基金项目(6141B05090401)，“十三五”装备预研共用技术项目(41423020304)Effect of Tribological Behavior of Nitriding Treatment on theTexturing Titanium Surface in Lunar Soil
LI Xingliang1,2,YUE Wen1,3,PANG Changtao2,XU Changyu2,KANG Jiajie1,3,TIAN Bin1,41. School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China; 2. Aviation Key Laboratory of Science and Technology on Precision Manufacturing,Beijing Precision Engineering Institute for Aircraft Industry, Beijing 100076, China;3. National International Joint Research Center of Deep Geodrilling Equipment, China University ofGeosciences (Beijing), Beijing 100083, China; 4. School of Material and Mechanical Engineering,Beijing Technology and Business University, Beijing 100048, China
Online:2018-05-28Published:2018-05-28摘要/Abstract
摘要： 为了提高钛在航天和航空等恶劣环境中的摩擦磨损性能和服役能力，利用激光表面加工技术在工业纯钛表面制备了不同点阵参数的微织构，采用低温离子渗氮技术对微织构进行渗氮处理，采用MS-T3000型摩擦磨损试验机评价了表面含微织构钛在模拟月壤介质中的摩擦磨损性能，并利用扫描电子显微镜和能谱仪分析钛的磨痕表面形貌及其元素含量.结果表明：渗氮处理能够大幅提高表面含微织构钛的减摩和抗磨性能，其摩擦系数的最大降幅为 47.1%，磨损率的最大降幅达 79.3%；表面微织构的点阵直径和点阵密度对未经渗氮处理钛的平均摩擦系数均有影响，而且点阵直径的影响更大；微织构的点阵参数对磨损率的影响不大；表面微织构的点阵密度对渗氮处理后钛的平均摩擦系数和磨损率的影响程度大于点阵直径和点阵深度.
关键词: 钛, 激光表面微织构, 渗氮处理, 摩擦磨损性能, 月壤介质
Abstract: In order to improve anti-friction and anti-wear performance of the titanium alloy in aerospace and aircraft area, dimple textures were prepared on TA2 titanium surface by means of laser surface texturing (LST). Then the texturing surface was nitrided by low temperature ion nitriding technology. Tribological behaviors of the texturing surfaces were investigated under lubrication with simulated lunar soil in dry sliding contact on an MS-T3000 friction and wear tester. The micro-morphologies and element content on the worn surfaces were analyzed by scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS), respectively. The result shows that surface nitriding treatment can greatly improve the anti-friciton and anti-wear properties of testured titanium surface by 47.1% and 79.3%, respectively. Dimple diameter and dimple density have great effect on the average friction coefficient on the untreated surface, and the influence of dimple diameter is greater. The texture parameters have no effect on the anti-wear properties. After nitriding, dimple density has greater effect on anti-friciton and anti-wear properties than dimple diameter and dimple depth.
Key words: titanium, laser surface texturing (LST), nitriding treatment, friction and wear behavior, lunar soil
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