【作者】 古柏林； 刘捍卫； 朱旻昊； 张鹏程； 周仲荣；

【Author】 GU Bai–lin;LIU Han–wei;ZHU Min–hao;ZHANG Peng–cheng;ZHOU Zhong–rong;Key Laboratory of Advanced Technologies of Materials,Ministry of Education of China,Southwest Jiaotong University;National Key Laboratory for Surface Physics and Chemistry;

【机构】 西南交通大学材料先进技术教育部重点实验室； 表面物理与化学国家重点实验室；

【摘要】 采用等离子体浸没离子注入和沉积技术(PIII&D),在1Cr18Ni9Ti不锈钢上制备TiN/Ti复合涂层,并分别在室温、200℃和400℃进行了微动磨损试验。用X射线光电子能谱仪(XPS)、X衍射(XRD)、俄歇能谱仪(AES)对涂层进行了表征,用扫描电镜(SEM)、激光共焦扫描显微镜(LCSM)对磨斑进行了分析。结果表明:TiN/Ti复合涂层主要由Ti、TiN和Ti2N相组成,涂层表面层的钛元素主要是以TiN和TiO2的形式存在,涂层与基材之间有一个Ti,N,Fe,Cr元素的过渡层;在部分滑移区,涂层的摩擦系数较低,磨损量较小,温度对复合涂层的磨损影响不显著,并且表现很好的耐磨性;在滑移区,随着温度的升高,复合涂层摩擦系数和磨损体积增加;在400℃该涂层仍有较好耐磨性,其磨损机制主要表现为剥层、氧化磨损和磨粒磨损。更多还原

【Abstract】 TiN/Ti composite coating was prepared on 1Cr18Ni9 Ti stainless steel substrate by Plasma Immersion Ion Implantation and Deposition(PIII&D).Fretting wear tests of the coating and its substrate were carried out at room temperature,200 ℃ and 400℃ in air,respectively.The coating was characterized by x-ray photoelectron spectroscopy(XPS),x-ray diffractometer(XRD) and Auger electron spectrometer(AES),and the wear scars were analyzed by scanning electron microscope(SEM) and laser confocal scanning microscope(LCSM).The results showed that the composite coating was consisted of Ti、TiN and Ti2 N,and TiN and TiO2 in the surface layer.There are a transit layer composing of Ti,N,Fe and Cr between the coating and the substrate,In the partial slip regime,the friction coefficient and wear volume of the coating were relatively lower.The effect of temperature on wear volume was quite limited,which presented a better property of anti-wear.In the slip regime,the friction coefficient and wear volume of the composite coating increased with the increase of the temperature.Even at 400 ℃,the coating also presented a better property of anti-wear.The wear mechanisms are delamination,oxidation wear and abrasive wear.更多还原