Theα＋βtitanium alloy, Ti-6Al-4V, was welded by friction stir welding using a W-Re pin tool, and the defect-free weld was produced with proper welding parameters. Texture of the Ti-6Al-4V friction stir weld was stud...Theα＋βtitanium alloy, Ti-6Al-4V, was welded by friction stir welding using a W-Re pin tool, and the defect-free weld was produced with proper welding parameters. Texture of the Ti-6Al-4V friction stir weld was studied by orientation imaging microscopy. The as-received Ti-6Al-4V sheet mill annealed was composed of elongated primary α and transformed β. A typical rolling texture was observed in the base material. The microstructure of the stir zone was significantly different from that of the base material. The stir zone was characterized by the presence of considerable amount of equiaxed dynamically recrystallized grains and a texture around{Ф1=30°,φ=62°,Ф2=30°}was developed during the friction stir welding.展开更多
基金Project(2010CB731704)supported by the National Basic Research Program of ChinaProject(AWJ-M13-11)supported by State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology,ChinaProject(2012M511470)supported by China Postdoctoral Science Foundation
文摘Theα＋βtitanium alloy, Ti-6Al-4V, was welded by friction stir welding using a W-Re pin tool, and the defect-free weld was produced with proper welding parameters. Texture of the Ti-6Al-4V friction stir weld was studied by orientation imaging microscopy. The as-received Ti-6Al-4V sheet mill annealed was composed of elongated primary α and transformed β. A typical rolling texture was observed in the base material. The microstructure of the stir zone was significantly different from that of the base material. The stir zone was characterized by the presence of considerable amount of equiaxed dynamically recrystallized grains and a texture around{Ф1=30°,φ=62°,Ф2=30°}was developed during the friction stir welding.
