等离子喷涂Al_2O_3陶瓷涂层的冲蚀磨损特性  

Erosive Wear Character of Plasma Spraying Al_2O_3 Ceramic Coating

作　　者：汤文博[1] 孙玉福[1] 陶玲 

机构地区：[1]郑州大学材料工程学院,河南郑州450002 [2]郑州锅炉厂工艺处,河南郑州450052

出　　处：《表面技术》2002年第4期15-16,20,共3页Surface Technology

基　　金：河南省"模具;材料工程及装备"重点学科开放实验室基金资助项目(1998-3 18)

摘　　要：研究了在固体颗粒冲蚀条件下 ,不同冲击速度、不同磨料尺寸等因素对等离子喷涂Al2 O3陶瓷涂层冲蚀磨损率的影响 ,并在不同条件下与 2 0号钢进行了对比试验 ,分析了等离子喷涂Al2 O3陶瓷涂层的冲蚀磨损特性及磨损机理 ,提出等离子喷涂Al2 O3陶瓷涂层具有脆性特征的冲蚀磨损特性 。This paper researches the effect of the factors, such as different hitting speeds and different abradant sizes, on erosive wear rate of plasma spraying Al 2O 3 ceramic coating, in the condition of solid grain erosion, and has comparative tests with 20# steel. In different condition, the erosive wear character and mechanism of the coating have been analyzed. It is posed that plasma spraying Al 2O 3 ceramic coating has brittleness character and fits to the erosion condition of minute abradant and low speed.

关 键 词：等离子喷涂 AL2O3陶瓷涂层 冲蚀磨损特性 氧化铝 

分 类 号：TG174.453[金属学及工艺—金属表面处理]