材料工程2018，Vol.46Issue(5)：79-85,7.DOI:10.11868/j.issn.1001-4381.2017.000698
热处理对激光熔覆钛基复合涂层组织和微动磨损性能的影响
Effect of Heat Treatment on Microstructure and Fretting Wear Resistance of Laser Clad Ti-matrix Composite Coatings
摘要
Abstract
To study the effect of heat treatment at different temperatures on microstructure and fret-ting wear resistance of laser clad Ti-matrix composite coatings,Ti-matrix composite coatings were fabricated by laser cladding with the powder precursor:40%Ti-25.2%TiC-34.8%WS2(mass frac-tion).The coatings were heated at 300,500℃ and 700℃in vacuum for 1h respectively,and the micro-structure and fretting wear resistance of coatings were analyzed.Results indicate that the main phase compositions of coatings are all composed of α-Ti,(Ti,W)C1-x,TiC,Ti2SC and TiS.The micro-hardness of coatings without heat treatment and with heat treatment at 300,500℃ and 700℃ is 1049.8,980.7,1143.3HV0.5 and 1190.7HV0.5.The coating with heat treatment at 700℃ exhibits ex-cellent fretting wear resistance and the wear mechanism is mainly adhesive wear and abrasive wear.关键词
激光熔覆/钛基复合涂层/热处理/微动磨损Key words
laser cladding/Ti-matrix composite coating/heat treatment/fretting wear分类
矿业与冶金引用本文复制引用
刘秀波,周仲炎,翟永杰,乔世杰,徐江宁,罗迎社,涂溶..热处理对激光熔覆钛基复合涂层组织和微动磨损性能的影响[J].材料工程,2018,46(5):79-85,7.基金项目
国家自然科学基金资助项目(U1737112) （U1737112）
湖南省自然科学基金资助项目(2018JJ2677) （2018JJ2677）
河南科技大学高端轴承摩擦学技术与应用国家地方联合工程实验室开放基金资助项目(201803) （201803）
