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Proceedings Paper

Transport mechanisms in the laser alloying of metals
Author(s): Ryszard Pawlak; Mariusz Tomczyk; Maria Walczak
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Paper Abstract

This article presents some investigations of a laser alloyed surface layer of nickel doped with gold and of copper doped with aluminum. The velocity of the convectino flow in the laser pool predicted by computation implies that there may exist good miscibility for the range of components different from those obtained by the conventional method. This indicates a predominant role of the Marangoni convection for mixing elements. Some metallurgical cross-sections of Ni-Au; Mo-Au; Cu-Al; Cu-Au layers, alloyed by an Nd-YAG laser, for different contents of doping elements are presented. They may be interesting information about miscibility of these metals during laser pulse τ1=4ms.

Paper Details

Date Published: 6 October 2003
PDF: 5 pages
Proc. SPIE 5229, Laser Technology VII: Applications of Lasers, (6 October 2003); doi: 10.1117/12.520758
Show Author Affiliations
Ryszard Pawlak, Technical Univ. of Lodz (Poland)
Mariusz Tomczyk, Technical Univ. of Lodz (Poland)
Maria Walczak, Technical Univ. of Lodz (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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