ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Cr2O3 Film Formed by Surface Oxidation of Stainless Steel Irradiated by a Nd-YAG Pulsed Laser
Jing YANG, Jianshe LIAN, Haizan BAI, Weiwei CUI, Zuoxing GUO
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Keywords: Cr2O3 film, Nd-YAG pulsed laser, oxidation mechanism, thermodynamics, annealing oxidation, diffusion
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2005 Volume 45 Issue 5 Pages 730-735

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Abstract
Nd-YAG pulsed laser was applied to the rapid oxidation of stainless steel to form a Cr2O3 protective film. Different metal oxide formed by the irradiation of the Nd-YAG pulsed laser. Cr2O3 film can form on the stainless steel when the scan velocity was controlled correctly. Different metal oxide growth mechanisms of the laser oxidation and the annealing oxidation in the oven were discussed. The oxidation reaction rate and the sequence of metal elements in stainless steel with oxygen under the laser irradiation were studied respectively. The lattice diffusion and short-circuit diffusion are the main mechanism of the annealing oxidation in the oven.
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© 2005 by The Iron and Steel Institute of Japan

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs license.
https://creativecommons.org/licenses/by-nc-nd/4.0/
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