基体表面粗化对电弧喷涂涂层组织及性能的影响  

Effect of Substrate Surface Roughening Process on Microstructure and Properties of Arc Spraying Coatings

作　　者：邓宇[1,2] 余圣甫[2] 黄林兵[2] 戴明辉[2] 行书乐[2] 姚玉环[1] 

机构地区：[1]广东石油化工学院机电工程学院,广东茂名525000 [2]华中科技大学材料科学与工程学院,湖北武汉430074

出　　处：《广东石油化工学院学报》2011年第4期24-27,共4页Journal of Guangdong University of Petrochemical Technology

基　　金：广东省茂名市重点科技计划项目(203626)

摘　　要：研究了喷砂粗化、喷涂打底涂层、电拉毛三种表面粗化措施对电弧喷涂涂层组织结构、显微硬度以及结合强度的影响。结果表明:不进行喷砂粗化时,涂层会产生剥落。喷砂粗化并喷涂打底涂层、喷砂粗化并进行电拉毛均能显著改善涂层的组织结构,提高显微硬度和结合强度。Effects of three substrate surface roughening methods such as sandblasting, spraying base coating and electrospark roughening on microstructure, microhardness and bonding strength were studied. The results show that coatings may spall without sandblasting. Spraying base coating after sandblasting and electrospark roughening after sandblasting can dramatically improve the microstructure, micmhardness and bonding strength.

关 键 词：表面粗化 涂层 电弧喷涂 组织与性能 

分 类 号：TG174.442[金属学及工艺—金属表面处理]