Laser Welding of Dissimilar Materials Based on VT20 Titanium and V-1461 Aluminum Alloys

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 tra...

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Bibliographic Details
Published in:Journal of applied mechanics and technical physics 2020-03, Vol.61 (2), p.307-317
Main Authors: Malikov, A. G., Orishich, A. M., Vitoshkin, I. E., Karpov, E. V., Ancharov, A. I.
Format: Article
Language:English
Subjects:
Aluminum
Aluminum base alloys
Applications of Mathematics
Butt welding
Classical and Continuum Physics
Classical Mechanics
Dissimilar material joining
Dissimilar materials
Fluid- and Aerodynamics
Interlayers
Laser beam welding
Lasers
Mathematical Modeling and Industrial Mathematics
Mechanical Engineering
Microstructure
Phase composition
Physics
Physics and Astronomy
Synchrotron radiation
Titanium alloys
Titanium base alloys
Welded joints
X ray spectra
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Summary: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.
ISSN:0021-8944
1573-8620
DOI:10.1134/S0021894420020182