表面织构化–等离子表面渗铬复合处理对TA2纯钛耐磨性的影响  

Effect of Surface Texturing–Plasma Surface Chromizing Duplex Treatment on Wear Resistance of TA2 Pure Titanium

作　　者：林乃明[1] 雷欣 王焕焕 袁烁 王强[1] 雷晨庆 闫江山 王玮华 马冠水 曾群锋[4] LIN Naiming;LEI Xin;WANG Huanhuan;YUAN Shuo;WANG Qiang;LEI Chenqing;YAN Jiangshan;WANG Weihua;MA Guanshui;ZENG Qunfeng(Taiyuan University of Technology,Taiyuan 030024,China;AVIC Aerospace Life-Support Industries,Ltd.,Xiangyang 441003,China;Key Laboratory of Marine Materials and Related Technologies of Chinese Academy of Sciences/Zhejiang Key Laboratory of Marine Materials and Protective Technologies,Chinese Academy of Sciences,Ningbo 315201,China;Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System,Xi’an Jiaotong University,Xi’an,710049,China)

机构地区：[1]太原理工大学,太原030024 [2]航空工业航宇救生装备有限公司,襄阳441003 [3]中科院海洋新材料与应用技术重点实验室/浙江省海洋材料与防护技术重点实验室,宁波315201 [4]西安交通大学现代设计及转子轴承系统教育部重点实验室,西安710049

出　　处：《航空制造技术》2022年第15期64-74,81,共12页Aeronautical Manufacturing Technology

基　　金：航空科学基金(20200029029001);中科院海洋新材料与应用技术重点实验室/浙江省海洋材料与防护技术重点实验室开放课题(2021K03)。

摘　　要：为改善TA2纯钛耐磨损性能,采用激光表面织构化–双辉等离子表面合金化复合处理技术在TA2表面制备铬改性层,并探究复合处理试样在室温和600℃温度下的摩擦学行为。结果表明,等离子合金化技术可在均匀的圆形织构单元表面上制备连续、致密的铬层,铬层厚度为55μm,主要由固溶体和CrTi、Cr_(2)Ti化合物相构成。渗铬处理显著提高了TA2的表面硬度;在室温和600℃条件下,表面织构化–等离子表面渗铬复合处理显著提高了TA2的耐磨性。就磨损失重而言,在室温和高温条件下,复合处理试样相对于TA2基体分别降低了77.2%和75%。A chromium modified layer was prepared by laser surface texturing-double glow plasma surface alloying duplex treatment to improve the wear resistance of TA2 pure titanium.And the tribological behavior of the duplex treated sample at room temperature and 600℃was investigated.The results showed that the continuous and dense chromium layer was fabricated using plasma alloying technology on the surface of TA2 with uniform circular texture unit.The thickness of the chromium layer was 55μm,which is mainly composed of solid solution and CrTi and Cr_(2)Ti compound phases.Chromizing treatment significantly improved the surface hardness of TA2.The laser surface texturing-plasma surface chromizing duplex treatment significantly improved the wear resistance of TA2 at room temperature and 600℃.In terms of mass loss,the duplex treated sample was reduced by 77.2%and 75%compared to the TA2 matrix at room temperature and high temperature respectively.

关 键 词：表面织构 等离子表面合金化 渗铬 复合处理 纯钛 耐磨性 

分 类 号：TG174.4[金属学及工艺—金属表面处理]