热喷涂制备铝基复合材料涂层及其热处理工艺  

Al-based composite coating fabricated by thermal spraying and its heat treatment technology

作　　者：李德元[1] 赵慧美[1] 张忠礼[1] 罗超[1] 彭洋[2] 

机构地区：[1]沈阳工业大学材料科学与工程学院,沈阳110870 [2]沈阳渤来特焊接材料公司,沈阳110111

出　　处：《沈阳工业大学学报》2010年第6期629-632,659,共5页Journal of Shenyang University of Technology

基　　金：辽宁省教育厅科技基金资助项目(0024101)

摘　　要：为了提高铝基涂层的硬度和耐磨性,研制了两种新型复合材料涂层.采用可控气氛等离子喷涂的方法制备了不同比例的铝氧化铝、铝铝青铜复合材料,通过扫描电子显微镜观察复合材料的组织形貌并进行成分分析,测定了其显微硬度.再对制得的复合材料涂层进行再结晶热处理,再次进行组织形貌观察和相分析,并进行显微硬度测试.结果表明:当铝和氧化铝比例为4∶3,铝和铝青铜比例为1∶3,热处理温度在350℃时,所得到的复合材料涂层的组织分布均匀,晶粒细小.In order to improve the hardness and wear resistance of Al-based coatings,Al-alumina and Al-albronze composite coatings were developed.These composite coatings were prepared by atmosphere controllable plasma spraying method.The microstructures of the coatings were observed using SEM,the composition of the coatings was analyzed,and the microhardness of the coatings was measured.The recrystallization heat treatment was performed for the composite coatings.And then the microstructure observation,phase analysis...

关 键 词：等离子喷涂 铝基复合材料 再结晶热处理 显微硬度 可控气氛 α-Al2O3陶瓷 涂层 铝青铜 

分 类 号：TG174.44[金属学及工艺—金属表面处理]