激光重熔对氧化铝涂层的组织结构及性能的影响  

Effect of Laser Remelting on Structures and Properties of Alumina Coatings

作　　者：国旭明[1] 吕念春[1] 张艳[1] 

机构地区：[1]沈阳工业学院材料工程系,沈阳空压机厂

出　　处：《沈阳理工大学学报》1996年第2期1-6,共6页Journal of Shenyang Ligong University

摘　　要：用ＲＳ—１７００ＳＭ型轴流式ＣＯ２激光器对Ａｌ２Ｏ３涂层进行了重熔，降低了原始涂层中的孔隙，消除了涂层的层状结构，得到了致密均匀的涂层，使重熔层的显微硬度明显提高．The plasma-sprayed alumina coatings were surface remelted by a CO2laser.Laser remelting has reduced the porosity of sprayed coatings,eliminated the lamellar structure and formed dense even coatings. Microhardness of melted layer has been increased significantly.High-temperture oxidation tests indicated:Laser surface remelting increased the high-temperture oxidation resistance of alumina coatings.

关 键 词：氧化铝涂层 激光重熔 高温氧化试验 

分 类 号：TG174.45.3[金属学及工艺—金属表面处理]