摘要
采用钢焊丝熔化极ＣＯ_２焊焊接铜钢接头，拉伸强度σ_ｂ达２００ＭＰａ，断口扫描电镜表明为塑性断裂，接头未产生热裂纹。Ｘ射线光电子能谱分析表明焊缝中不存在铜的氧化物，接头铜铁含量在熔合线附近产生跃变、含铁低于１０％的区域极窄。
in this investigation, copper-steel joints are welded by CO_2 welding with steel electrode. No heat crack is found in welded joints whose tensile strength σ_b attains 200 MPa, and the plastic fracture is demonstrated by SEM. The iron and copper contents sharply change near the junction. the than 10% iron content zone is extremely narrow.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
1996年第4期258-262,共5页
Transactions of The China Welding Institution
关键词
铜
钢
焊接
钢焊丝
二氧化碳保护焊
s: copper-steel welding, CO_2 welding, steel welding wire
