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Proceedings Paper

Corrosion behavior of laser-remelted aluminum alloy
Author(s): Hanna Pokhmurska; Lech Kwiatkowski; Wojciech Kalita; Jacek Hoffman
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Paper Abstract

The laser surface melting of AA2024-T3 alloy modified a structure of surface layer resulting in cells and/or cellular dendrites of very fine microstructure. There are mainly two phases, i.e. primary solid solution and precipitated Al2Cu phase, around the cell boundaries. Some minor traces of Fe and Mn are also present. The estimated decrease of Cu content in precipitates is approximately 25%. The susceptibility to pitting corrosion of laser melted AA2024-T3 surfaces characterised by pitting potential was not improved in comparison with as-received material, mainly due to non-uniform structure at subsequent laser tracks.

Paper Details

Date Published: 6 October 2003
PDF: 6 pages
Proc. SPIE 5229, Laser Technology VII: Applications of Lasers, (6 October 2003); doi: 10.1117/12.520759
Show Author Affiliations
Hanna Pokhmurska, Technical Univ. Chemnitz (Germany)
Lech Kwiatkowski, Institute of Precision Mechanics (Poland)
Wojciech Kalita, Institute of Fundamental Technological Research (Poland)
Jacek Hoffman, Institute of Fundamental Technological Research (Poland)

Published in SPIE Proceedings Vol. 5229:
Laser Technology VII: Applications of Lasers
Wieslaw L. Wolinski; Zdzislaw Jankiewicz; Ryszard Romaniuk, Editor(s)

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