Si元素对钛/钢异种金属接头成形及微观组织影响
采用T2Cu和CuSi3焊丝在相同工艺参数下对厚度为1 mm的TC4钛合金及304不锈钢进行焊接，并借助光学显微镜(optical microscopy, OM)和扫描电镜(scanning electron microscopy, SEM)研究了两种焊丝下的TC4/304异种金属焊接熔池冶金行为. 对比分析了不同焊丝成分，尤其是Si元素的加入对TC4/304异种金属接头宏观成形、界面微观组织和力学性能的影响. 结果表明，Si元素的加入使液态熔池流动性显著增强，消除了凹陷和孔洞等缺陷，解决了焊缝背部熔合不良问题，焊缝宏观成形显著改善. 两种焊丝均有效阻隔了Ti，Fe原子，钛/铜界面未生成Ti-...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Transactions of the China Welding Institution, Welding Journals Publishing House
2025-01-01
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| Series: | Hanjie xuebao |
| Subjects: | |
| Online Access: | http://hjxb.hwi.com.cn/hjxb//article/doi/10.12073/j.hjxb.20231025001 |
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