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Type of publication: research article
Type of publication (PDB): Straipsnis Clarivate Analytics Web of Science / Article in Clarivate Analytics Web of Science (S1)
Field of Science: Fizika / Physics (N002)
Author(s): Abrasonis, Gintautas;Riviere, J.-P;Templier, Claude;Muzard, S;Pranevičius, Liudvikas
Title: Influence of surface preparation and ion flux on the nitriding efficiency of austenitic stainless steel
Is part of: Surface and coatings technology. Lausanne : Elsevier B.V., 2005, Vol. 196, iss. 1-3
Extent: p. 279-283
Date: 2005
Note: Surface and coatings technology : 13th International Conference on surface modification of materials by ion beams San Antonio, Texas, 21-26 September 2003
Keywords: Diffusion;Ion implantation;chromium alloy;Nitriding;Stainless steel
Abstract: Ion beam nitriding of an austenitic stainless steel (ASS) at moderate temperatures (similar to 400 degrees C) produces a supersaturated nitrogen solid solution that has beneficial effects on the mechanical properties. The nitriding efficiency cannot be improved by increasing the treatment temperature in order to preserve the stainless character contrary to other parameters such as surface pretreatment, ion flux, etc. The effect of flux and pretreatment with argon is investigated in ion beam nitriding of 304L ASS. The ion energy and temperature were 1.2 keV and 400 degrees C, respectively, the ion current densities were 0.5, 0.67, and 0.83 mA(.)cm(-2). The obtained results show that nitrogen uptake increases with increasing the ion flux. The pretreatment with argon beam for I min at RT increases nitrogen uptake at early stages of nitriding and longer pretreatment times do not provide any improvement. The results are discussed in relation with surface effects and atomic transport mechanism
Affiliation(s): Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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