The Paton Welding Journal, 2001, №11

2001 №11 (03)

2001 №11 (05)

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The Paton Welding Journal, 2001, #11, 17-20 pages

Selection of temperature of preheating of γ-titanium aluminide in electron beam welding

V.N. Zamkov, E.A. Velikoivanenko, V.K. Sabokar, E.L. Vrzhizhevsky

E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.

Abstract
Development elasto-plastic strains in welding heating and cooling of samples of gamma-titanium aluminide alloy has been analysed using calculation methods. The level of residual longitudinal stresses in the alloy plates 5-17 mm thick in EBW, depending upon the temperatures of preheating and annealing of welded joints after welding, has been determined. It has been established that prevention of formation of cold cracks in the 47XD alloy weld made by single-pass EBW on metal up to 17 mm thick is provided by preheating the samples to 400-500 ^oC and annealing of welded joints within a temperature range of 800-900 ^oC for 10-15 min.
Keywords: titanium aluminide, cold cracks, temperature fields, elasto-plastic strains, stresses, preheating, annealing

References

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Suggested Citation

V.N. Zamkov, E.A. Velikoivanenko, V.K. Sabokar, E.L. Vrzhizhevsky (2001) Selection of temperature of preheating of γ-titanium aluminide in electron beam welding. The Paton Welding J., 11, 17-20.

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