Fe_3 Al/18-8异种材料的真空扩散焊接  

VACUUM DIFFUSION WELDING OF Fe_3Al/18 -8 DISSIMILAR MATERIAL

作　　者：王娟[1] 李亚江[1] 刘鹏[1] 

机构地区：[1]山东大学材料液态结构及其遗传性教育部重点实验室,济南市250061

出　　处：《焊接》2004年第3期13-15,19,共4页Welding & Joining

摘　　要：研究了扩散焊接工艺参数对Fe3Al/18-8扩散界面结合状态、接头组织结构和剪切强度的影响。采用扫描电镜(SEM)分析了不同焊接工艺参数下Fe3Al/18-8扩散焊接头的显微组织特征。结果表明,控制加热温度1 040℃,保温60 min,焊接压力15 MPa时,可以获得组织均匀、强度较高的Fe3Al18-8扩散焊接头。The effects of diffusion welding technology parameters on the combination of the Fe3Al/18 -8 interface, microstructure and shear strength were studied. The microstructure feature in the diffusion - welded joint of Fe3Al/18 - 8 was observed by means of scanning electron microscope (SEM). The results indicated that by controlling heating temperature 1040 ℃, holding time 60 min and welding pressure 15 MPa,diffusion - welded joint of Fe3 Al/8 - 8 with excellent microstructure performance and high strength could be obtained.

关 键 词：异种焊接 扩散焊接 剪切强度 显微组织 Fe3Al/18-8 工艺参数 

分 类 号：TG453.9[金属学及工艺—焊接]