Abstract
This paper describes the experimental study of strength characteristics and the microstructure of a permanent joint of dissimilar materials (VT20 titanium alloy and V-1461 aluminum alloy), obtained by laser butt welding. Optical and electron microscopy, X-ray spectral and phase analysis, and the transmission diffraction method with the help of synchrotron radiation are all used to investigate the properties of a weld. It is shown that the laser radiation offset relative to the contact surface of dissimilar materials significantly changes the microstructure and phase composition of the intermetallic interlayer formed between the materials welded, thereby affecting the strength of dissimilar welded joints.
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Original Russian Text © A.G. Malikov, A.M. Orishich, I.E. Vitoshkin, E.V. Karpov, A.I. Ancharov.
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Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 61, No. 2, pp. 175–186, March–April, 2020.
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Malikov, A.G., Orishich, A.M., Vitoshkin, I.E. et al. Laser Welding of Dissimilar Materials Based on VT20 Titanium and V-1461 Aluminum Alloys. J Appl Mech Tech Phy 61, 307–317 (2020). https://doi.org/10.1134/S0021894420020182
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DOI: https://doi.org/10.1134/S0021894420020182