<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The fundamental aim of the research is to investigate the microstructure and mechanical properties of the AA2519-T62 laser beam welded joints obtained with various values of welding velocity. For the constant value of laser power (3.2 kW) three joints have been produced with various values of welding velocity: 0.8, 1.1, and 1.4 m/min. The joints have been subjected to microstructure analysis (including both light and scanning electron microscope), microhardness measurements, tensile tests, and fractography of tensile samples. The established values of joint efficiency contain within the range of 55-66% with the highest value (66%) reported for the joint obtained with 1.1 m/min welding velocity. The produced welds have noticeable participation of pores, which tends to increase together with the value of welding velocity. In all cases, the failure has occurred in the fusion zone by ductile fracture.</p>
</abstract>

The fundamental aim of the research is to investigate the microstructure and mechanical properties of the AA2519-T62 laser beam welded joints obtained with various values of welding velocity. For the constant value of laser power (3.2 kW) three joints have been produced with various values of welding velocity: 0.8, 1.1, and 1.4 m/min. The joints have been subjected to microstructure analysis (including both light and scanning electron microscope), microhardness measurements, tensile tests, and fractography of tensile samples. The established values of joint efficiency contain within the range of 55-66% with the highest value (66%) reported for the joint obtained with 1.1 m/min welding velocity. The produced welds have noticeable participation of pores, which tends to increase together with the value of welding velocity. In all cases, the failure has occurred in the fusion zone by ductile fracture.

Microstructure and Mechanical Properties of Sc-Modified AA2519-T62 Laser Beam Welded Butt Joints

Advances in Materials Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The fundamental aim of the research is to investigate the microstructure and mechanical properties of the AA2519-T62 laser beam welded joints obtained with...

Microstructure and Mechanical Properties of Sc-Modified AA2519-T62 Laser Beam Welded Butt Joints

Published Online: Dec 30, 2022

Page range: 57 - 69

DOI: https://doi.org/10.2478/adms-2022-0019

Keywords
aluminum, AA2519, microstructure, mechanical properties, laser beam welding, fracture

© 2022 Robert Kosturek et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Microstructure and Mechanical Properties of Sc-Modified AA2519-T62 Laser Beam Welded Butt Joints

Published Online: Dec 30, 2022

Page range: 57 - 69

DOI: https://doi.org/10.2478/adms-2022-0019

Keywordsaluminum, AA2519, microstructure, mechanical properties, laser beam welding, fracture

© 2022 Robert Kosturek et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
aluminum, AA2519, microstructure, mechanical properties, laser beam welding, fracture