Chapter

Proceedings of the 36th International MATADOR Conference

pp 293-296

Influence of Electron Beam Local Annealing on the Residual Stresses for the joints with Electron Beam Welding of near α titanium alloy

  • Peng-fei FuAffiliated withNational Key Laboratory of Science and Technology on Power Beam Processes, Beijing Aeronautical Manufacturing Technology Research InstituteSchool of Materials Science and Engineering, Huazhong University of science and technology
  • , Gang FuAffiliated withNational Key Laboratory of Science and Technology on Power Beam Processes, Beijing Aeronautical Manufacturing Technology Research Institute
  • , Shui-li GongAffiliated withNational Key Laboratory of Science and Technology on Power Beam Processes, Beijing Aeronautical Manufacturing Technology Research Institute
  • , Ya-jun WangAffiliated withSchool of Materials Science and Engineering, Huazhong University of science and technology

* Final gross prices may vary according to local VAT.

Get Access

Abstract

To reduce the negative influence of residual welding stresses in aeronautical products, electron beam(EB) local annealing after electron beam welding(EBW) was studied for near α titanium alloy of Ti-Al-Sn-Zr. The appearance of the welded joints was observed, and the residual welding stresses for EBW and EB local annealing were measured by the drilling-hole method. The results showed that the gradient of the longitudinal residual stresses lowered along the central line of vertical welds after EB local annealing, and the peak stresses lowered 40% more than those of as-welded; transverse residual stresses changed a little. Along the welds, the longitudinal stresses were also decreased after EB local annealing, and the equilibrium region of the residual stresses was located in the centre of the plate.