Microstructure characteristics of repairing welded joint of TA15 Ti alloy were analyzed by optics microscope, X-ray diffraction and electron probe microanalysis.

• 采用光学显微镜、X射线衍射仪和电子探针等测试手段分析TA15钛合金熔焊接头补焊微观组织特征,探讨钛合金焊缝多次补焊的可行性。