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Proceedings Paper

Surface alloying of metals by nanosecond laser pulses under transparent overlays
Author(s): Igor Smurov; A. Smirnov; N. Martsenyuk; V. Yu. Fominski
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Paper Abstract

A thorough experimental study was made of the processes determining formation of metastable surface alloys in a film-substrate system (Au-Ni, Sn-Cr) irradiated by laser pulses of nanosecond duration. The irradiation was performed in conventional conditions (on air) and, following the new method, through transparent overlay. A physical model of laser induced processes has been developed. The model predicts an increases of the depth of the melt, elevation of the liquid-phase temperature, rise of the diffusion speed of atoms in the liquid phase, and decrease of the cooling rate of the alloy during irradiation through the transparent overlay.

Paper Details

Date Published: 2 September 2003
PDF: 10 pages
Proc. SPIE 5121, Laser Processing of Advanced Materials and Laser Microtechnologies, (2 September 2003); doi: 10.1117/12.515579
Show Author Affiliations
Igor Smurov, Ecole National d'Ingenieurs de Saint-Etienne (France)
A. Smirnov, Moscow Engineering Physics Institute (Russia)
N. Martsenyuk, Moscow Engineering Physics Institute (Russia)
V. Yu. Fominski, Moscow Engineering Physics Institute (Russia)

Published in SPIE Proceedings Vol. 5121:
Laser Processing of Advanced Materials and Laser Microtechnologies
Friedrich H. Dausinger; Vitali I. Konov; Vladimir Yu. Baranov; Vladislav Ya. Panchenko, Editor(s)

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