钛/钢异种金属焊接技术的研究进展

Development Progress of Welding Technologies of Titanium/Steel Dissimilar Metal

钛和钢广泛应用于船舶领域,其中,钢材主要用于船体,钛合金则大量用于海水管路等部位,由于钛与钢的物理化学性能差异,焊接界面常形成大量脆性金属间化合物,无法获得优质的焊接接头,因此产生了钛/钢连接问题.本研究在分析钛/钢异种金属的焊接性基础上,综述了钛/钢异种金属间的钎焊、压力焊、熔焊等研究现状,并对钛/钢异种金属焊接的发展前景进行了展望.

Titanium and steel are widely used in ship building,among which,steel is mainly used as ship hull,and titanium alloy widely used in seawater pipelines and other penetrating parts.However,the properties of welding between them is limited by the distinctions of their physical and chemical properties,and a large number of brittle intermetallic compounds are always formed at the welding interface,resulting in titanium and steel connection problems.On the above analysis,the research progress of brazing,pressure welding and fusion welding of titanium/steel dissimilar metals is summarized,and the development prospect of titanium/steel dissimilar metals welding forecasted.