Influence of Residual Stresses on the Weld Metal Hardness of 5V Titanium Alloy

Abstract:

Influence of residual welding stresses on the hardness values of the weld metal is studied. The investigations were carried out on 5V titanium alloy welded joints, obtained by electron-beam welding and argon-arc welding (TIG-welding). It is shown that the nature of the residual stresses distribution depends on the parameters of welding and affects the hardness values of the weld metal. It is shown, that the difference between the hardness values of the metal after welding and the metal after partial relief of residual stresses on the investigated alloy is up to 90 MPa, which is about 3% of the weld metal hardness level.

• Periodical: Defect and Diffusion Forum (Volume 410)
• Pages: 359-365
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.410.359
• Online since: August 2021
• Authors: Egor V. Terentyev*, Artem Yu. Marchenkov, Ksenia T. Borodavkina
• Keywords: Electron Beam Welding, Indentation, Residual Stress, Vickers Hardness, Welded Joint

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