Corrosion resistance of AISI 316L stainless steel nitrided by three different plasma assisted techniques

Plasma assisted surface modification methods have been used to nitride stainless steels in order to enhance hardness and therefore the lifetime of industrial componentes. Nevertheless, the corrosion resistance is not always preserved since it thermochemical diffusion techniques. AISI 316L stainless...

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Autores principales: Manova, Darina, Mändl, Stephan, Brühl, Sonia Patricia, Escalada, Lisandro, Simison, Silvia
Formato: Documento de conferencia acceptedVersion docunento de conferencia
Lenguaje:Inglés
Publicado: 2016
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Acceso en línea:http://hdl.handle.net/20.500.12272/872
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id I68-R174-20.500.12272-872
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic Plasma nitriding
Stainless steel
Corrosion
Implantation
spellingShingle Plasma nitriding
Stainless steel
Corrosion
Implantation
Manova, Darina
Mändl, Stephan
Brühl, Sonia Patricia
Escalada, Lisandro
Simison, Silvia
Corrosion resistance of AISI 316L stainless steel nitrided by three different plasma assisted techniques
topic_facet Plasma nitriding
Stainless steel
Corrosion
Implantation
description Plasma assisted surface modification methods have been used to nitride stainless steels in order to enhance hardness and therefore the lifetime of industrial componentes. Nevertheless, the corrosion resistance is not always preserved since it thermochemical diffusion techniques. AISI 316L stainless steel was plsma nitrided using three different techniques: Low Energy Ion Implantation (LEII), Plasma Immersion Implantation (PI3) and conventional DC pulsed plasma nitriding (DCPN). For each method several parameters were tested and some of them were selected to achieve the so called S phase of about e um thickness and no nitrides precipitation. The nitrided layer was characterized with OM and SEM. Hardness was assessed on the surface with Vickers indenter and 25 g load. XRD was performed to characterize the S phase and to detect other phases if present and electrochemical corrosion tests were carried out in 3,5% NaCI solution. Although the S phase thickness in the three groups of samples was comparable, hardness was not and neither was the corrosion resistance. The PI3 samples were the hardest with the best performance in corrosion experiments, resulting in a higher breakdown potential and lower currents.
format Documento de conferencia
acceptedVersion
docunento de conferencia
author Manova, Darina
Mändl, Stephan
Brühl, Sonia Patricia
Escalada, Lisandro
Simison, Silvia
author_facet Manova, Darina
Mändl, Stephan
Brühl, Sonia Patricia
Escalada, Lisandro
Simison, Silvia
author_sort Manova, Darina
title Corrosion resistance of AISI 316L stainless steel nitrided by three different plasma assisted techniques
title_short Corrosion resistance of AISI 316L stainless steel nitrided by three different plasma assisted techniques
title_full Corrosion resistance of AISI 316L stainless steel nitrided by three different plasma assisted techniques
title_fullStr Corrosion resistance of AISI 316L stainless steel nitrided by three different plasma assisted techniques
title_full_unstemmed Corrosion resistance of AISI 316L stainless steel nitrided by three different plasma assisted techniques
title_sort corrosion resistance of aisi 316l stainless steel nitrided by three different plasma assisted techniques
publishDate 2016
url http://hdl.handle.net/20.500.12272/872
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