Laser welding of TC4 Titanium (Ti) alloy to 304 austenitic stainless steel (SS) has been applied using 38Zn-61Cu alloy as filler metal. A new welding process for SS-Ti alloy joint was introduced on the basis of the controlling the formation of Ti-Fe intermetallics in the joint. One pass welding involving creation of a joint with one fusion weld and one diffusion weld separated by remaining unmelted Ti alloy. When laser beam on the Ti alloy side was 1.5 mm, Ti alloy would not be completely melted in joint. Through heat conduction of unmelted Ti alloy, the atomic diffusion occurred at the SS-Ti alloy interface. A diffusion weld was formed at the SS-Ti alloy interface with the main microstructure of β-CuZn + Fe₃Zn₇, β-CuZn and Ti₂Zn₃ + Ti₃Cu₄. The joint fractured at the diffusion weld with the maximum tensile strength of 128 MPa.

使用38Zn-61Cu合金作为填充金属，将TC4钛（Ti）合金激光焊接到304奥氏体不锈钢（SS）上。在控制接头中Ti-Fe金属间化合物形成的基础上，介绍了SS-Ti合金接头的新焊接工艺。单道次焊接包括创建一个接头，该接头具有一个熔合焊缝和一个扩散焊缝，并通过剩余的未熔融Ti合金隔开。当Ti合金侧的激光束为1.5mm时，Ti合金在接合处不会完全熔化。通过未熔化的钛合金的热传导，原子扩散发生在SS-Ti合金界面处。在SS-Ti合金界面处形成扩散焊缝，其主要组织为β-CuZn+ Fe ₃ Zn ₇，β-CuZn和Ti ₂ Zn ₃ + Ti ₃ Cu ₄。接头在扩散焊缝处断裂，最大抗拉强度为128 MPa。