Influence of Heat Treatment on the Fracture of a Welded Joint of an Al-Cu-Li Aircraft Alloy at Different Temperatures

Results of an experimental study of how temperature affects the fracture of laser welded joints of an Al-Cu-Li aircraft aluminum alloy are presented. A comparison is made of the deformation and fracture of welded joints in the initial state and after two-step heat treatment. It is shown that the mec...

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Bibliographic Details
Published in:Journal of applied mechanics and technical physics 2020, Vol.61 (1), p.78-86
Main Authors: Karpov, E. V., Malikov, A. G., Orishich, A. M., Annin, B. D.
Format: Article
Language:English
Subjects:
Aircraft
Aircraft construction materials
Aluminum base alloys
Applications of Mathematics
Classical and Continuum Physics
Classical Mechanics
Copper
Copper base alloys
Fluid- and Aerodynamics
Heat treatment
Laser beam welding
Mathematical Modeling and Industrial Mathematics
Mechanical Engineering
Mechanical properties
Physics
Physics and Astronomy
Welded joints
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Summary:Results of an experimental study of how temperature affects the fracture of laser welded joints of an Al-Cu-Li aircraft aluminum alloy are presented. A comparison is made of the deformation and fracture of welded joints in the initial state and after two-step heat treatment. It is shown that the mechanical characteristics of welded samples have values close to those of the initial alloy.
ISSN:0021-8944
1573-8620
DOI:10.1134/S0021894420010095