等离子束表面冶金多道搭接层的组织与性能  

Microstructure and Properties of Plasma Beam Surface Metallurgical Multi-pass Lap Coating

作　　者：王明清[1] 李惠琪[1] 李敏[1] 李惠东[2] 于洪爱[1] 

机构地区：[1]山东科技大学材料学院,山东青岛266510 [2]北京科技大学材料科学与工程学院,北京100083

出　　处：《金属热处理》2006年第9期58-60,共3页Heat Treatment of Metals

基　　金：山东省优秀中青年科学家科研奖励基金(02BS057);山东省自然科学基金(Y2002F12)

摘　　要：利用送粉式DC-Plasma-Jet表面冶金设备,在低碳钢表面进行Fe-Cr-C-Si-B合金粉末等离子束表面冶金多道搭接试验,表面冶金带搭接率为50%。对试样搭接处的组织及性能进行了分析测试。结果发现,搭接区晶粒呈菊花状,组织相对细小致密,硬度有所提高。Plasma surface metallurgy multi-tracks lap coating was formed on low carbon steel with Fe-Cr-C-Si-B alloy powders by feeding DC-Plasma-Jet surface metallurgical equipment, and the lap rate of surface metallurgical zone is 50%. Microstructure and properties were analyzed and tested on lap joint. The results show that the chrysanthemum crystal grains are found in lap joint area,and the microstructures in this area are much fine and compact,and its hardness increases.

关 键 词：等离子束 表面冶金 多道搭接 显微组织 

分 类 号：TG156.8[金属学及工艺—热处理]