학술논문
Effect of Heat Treatment on the Structure and Properties of Laser Welded Joints of Aluminum Alloy AA2024.
Document Type
Article
Source
Subject
*ALUMINUM alloy welding
*LASER welding
*MICROSCOPY
*TENSILE tests
*WELDED joints
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Language
ISSN
0026-0673
Abstract
The effect of post-welding heat treatment on the structure and properties of joints formed by laser welding from aluminum alloy AA2024 is studied. Tensile tests are conducted, x-ray phase analysis and electron microscopic analysis are performed; the Vickers microhardness is determined. It is shown that the weld metal and the heat-affected zone play a determining role in the operating capacity of the joints. The properties of the joints are raised by quenching and artificial aging. A heat treatment mode providing mechanical properties of joints from alloy AA2024 comparable to the properties of the base metal is suggested. [ABSTRACT FROM AUTHOR]