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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;Pranevičius, Liudvikas;Barradas, N. P
Title: Flux effect on the ion-beam nitriding of austenitic stainless-steel AISI 304L
Is part of: Journal of applied physics. Melville : American Institute of Physics, 2005, Vol. 97, iss. 12
Extent: p. 124906-124906
Date: 2005
Keywords: Plasma-diffusion treatment;Low-energy;Low-temperature;Nitrogen implantation;Surface modification;Expanded austenite;Phase
Abstract: The effect of flux and Ar pretreatment during ion-beam nitriding of austenitic stainless steel is investigated. The ion energy and temperature were 1.2 keV and 400 °C, respectively, the ion current densities were 0.5, 0.67, and 0.83 mA cm–2. The nitrogen distribution profiles were measured using nuclear reaction analysis. The obtained nitrogen distribution profiles were analyzed by the means of the nitrided layer thickness evolution due to sputtering and diffusion and the model of trapping–detrapping. Both approaches could fit well the experimental results, however, different diffusion coefficients have to be assumed for each current density. In addition, the diffusion coefficients are higher for higher current densities. On the other hand, it is shown that the pretreatment with Ar-ion beam at nitriding temperatures produces only a thermal effect without any other influence on the following nitrogen diffusion. The results are discussed in relation with surface and temperature effects and atomic transport mechanisms
Affiliation(s): Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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