钎缝间隙对1Cr18Ni9Ti/B30真空钎焊接头组织的影响  

Influence of Joint Clearance on Microstructure of Brazed Joints of 1Cr18Ni9Ti and B30 alloy

作　　者：李少华[1] 常磊[1] 

机构地区：[1]中国船舶重工集团公司第七一八研究所

出　　处：《舰船防化》2010年第6期33-36,共4页

摘　　要：采用AgCu32Pd10钎料对不锈钢1Cr18Ni9Ti和B30异种合金进行真空钎焊连接试验,通过金相显微镜和扫描电镜分析了不同钎缝间隙真空钎焊接头的金相组织和焊缝元素分布。结果表明,钎缝间隙对钎焊接头的组织有较大影响,当钎缝间隙增大时,钎焊接头组织变得复杂,钎焊接头界面结构为1Cr18Ni9Ti/含Fe和Pd的Cu-Ni固溶体＋Ag-Cu固溶体＋含Pd的Cu-Ag固溶体/B30。The vacuum brazing of 1Cr18Ni9Ti/B30 was carried out with AgCu32Pd10 brazing filler metal, and the effects of joint clearance on interface microstructure were discussed. The experiment result showed that the microstructure was remarkably affected by the joint clearance. When the clearance increased, the microstructure of the brazed joint became complex. 1Cr18Ni9Ti/Cu-Ni （s,s） ＋ Ag-Cu （s,s） ＋ Cu-Ag （s,s）/B30.

关 键 词：1Cr18Ni9Ti合金 B30合金 真空钎焊 AgCu32Pd10钎料 

分 类 号：TG454[金属学及工艺—焊接]