反应喷涂制备Al_2O_3-TiB_2复相涂层的工艺研究  

Process Study on Al_2O_3-TiB_2 Composite Coating Prepared by Reactive Spray

作　　者：李明[1] 周小平[1] 

机构地区：[1]湖北工业大学机械工程学院,武汉430068

出　　处：《表面技术》2011年第5期61-63,共3页Surface Technology

基　　金：国家自然科学基金资助项目(51171062)

摘　　要：利用反应喷涂方法在铝合金表面制备Al2O3-TiB2复相涂层,分析了机械合金化、喷涂温度以及添加粘结剂等工艺对涂层组织形貌的影响,得出了制备涂层较理想的工艺方法,并测试了涂层的显微硬度。结果表明:球磨后的混合粉末添加过量Al粘结剂,经过等离子喷涂可以制得Al2O3-TiB2复相涂层,涂层组织形貌良好,致密度高,其显微硬度最高达1 300HV0.1。The A12O3-TiB2 composite coating was prepared on the surface of the aluminum alloy by reactive spraying. The effect of mechanical alloying, spraying temperature and binder on the morphology of the composite were analyzed. The optimum method of preparation of the coating was found. The microhardness in the coating were tested. The results indicate that the A12 O2 TiB2 composite coating milled powder add excess A1 by plasma spraying is obtained. The coating with microhardness of 1 300HV0.1 has good morphology and microstructures.

关 键 词：Al2O3-TiB:复相涂层 机械合金化 反应喷涂 粘结剂 

分 类 号：TG174.442[金属学及工艺—金属表面处理]