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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.
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Ryszard Pawlak, Mariusz Tomczyk, Maria Walczak, "Transport mechanisms in the laser alloying of metals," Proc. SPIE 5229, Laser Technology VII: Applications of Lasers, (6 October 2003); https://doi.org/10.1117/12.520758