Al/Al_2O_3复合热喷涂粉体制备及其涂层耐腐蚀性能研究  

Crosion Resistance of Coatings Prepared Using Al/Al_2O_3 Composite Powders

作　　者：王超会[1,2] 杨长龙[1] 王玉慧[1] 李晓生[1] 赵家林[1] 高文宇[1] 郝光照 王铀[2] 

机构地区：[1]齐齐哈尔大学材料科学与工程学院,齐齐哈尔161006 [2]哈尔滨工业大学材料科学与工程学院,哈尔滨150001

出　　处：《硅酸盐通报》2016年第11期3759-3762,3769,共5页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金项目(51401113);黑龙江省自然科学基金项目(E2015044);齐齐哈尔市工业攻关项目(GYGG-201307)

摘　　要：Al/Al_2O_3复合材料具有密度小、耐磨、抗高温、抗热震性好等多方面的优异性能,应用日趋广泛。本文选择再造粒的方法制备出了几种配比不同的Al/Al_2O_3复合粉体,比较不同配比的复合粉体的物理性质。对复合粉体进行了火焰喷涂,对喷涂后获得的涂层进行了耐腐蚀性能的检测。Al/Al_2O_3复合粉体的流动性随着Al_2O_3含量增加越来越好,Al_2O_3的质量分数为75%的粉末的流动性最好。而Al_2O_3的质量分数为80%的涂层的耐腐蚀性能最好。Al/Al2O3 composite material has low density, abrasion resistance, high temperature resistance, thermal shock resistance, and many other excellent performance, with the increasingly widespread application. In this paper, several different Al/Al2O3 composite powders were prepared by regranulation, and physical properties of each kind of powder were researched . the composite coatings were fabricated by flame spraying using the composite powders, and the corrosion resistance testing on the coatings were carried out. The flowability of the composite powder was better while the Al2O3 contents were increased, and the powder with 75% Al2O3 had the best flowability. The coating with Al2O3 mass fraction of 80% has the best corrosion resistance.

关 键 词：AL/AL2O3 火焰喷涂 复合涂层 极化曲线 

分 类 号：TG178[金属学及工艺—金属表面处理]