Carbon based coatings deposited on stainless steel : study of thermal degradation

Amorphous hydrogenated carbon (DLC) coatings have a high hardness depending on the relative amount of sp3/sp2 bondings. They also exhibit an extremaly low friction coefficient and are chemically inert. However, these coatings have some disadvantages which limit their applications. For instance, adhe...

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Autores principales: Dalibón Bähler, Eugenia Laura, Trava-Airoldi, Vladimir Jesús, Brühl, Sonia Patricia, Ghafoor, Naureen, Rogström, Lina, Odén, Magnus
Formato: Documento de conferencia acceptedVersion
Lenguaje:Inglés
Publicado: 2021
Materias:
Thermal degradation
Coatiings deposited
Carbon
Nitrided stainless steel
Acceso en línea:http://hdl.handle.net/20.500.12272/4737
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-4737
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic Thermal degradation
Coatiings deposited
Carbon
Nitrided stainless steel
spellingShingle Thermal degradation
Coatiings deposited
Carbon
Nitrided stainless steel
Dalibón Bähler, Eugenia Laura
Trava-Airoldi, Vladimir Jesús
Brühl, Sonia Patricia
Ghafoor, Naureen
Rogström, Lina
Odén, Magnus
Carbon based coatings deposited on stainless steel : study of thermal degradation
topic_facet Thermal degradation
Coatiings deposited
Carbon
Nitrided stainless steel
description Amorphous hydrogenated carbon (DLC) coatings have a high hardness depending on the relative amount of sp3/sp2 bondings. They also exhibit an extremaly low friction coefficient and are chemically inert. However, these coatings have some disadvantages which limit their applications. For instance, adhesion is poor when are deposited on metallic substrates and they are also unstable at high temperatures, degrading into graphite and loosing hardness. in this work, DLC coatings were deposited on presipitation hardening stainless steel (PH Corrax) which was plasma nitrided before the coating deposition. The samples were submitted to annealing treatments for an hour at different temperatures from 200 to 600ºC, together with a control group, wich was only coated but not nitrided. After each annealing cycle, Raman Spectroscopy, nanoindentation and microscopy were used to check fil properties. It was demonstrated that the nitriding pretreatment improved not only adhesion but also the thermal stability of the DLC, slowing degradation and preventing delamination.
format Documento de conferencia
acceptedVersion
author Dalibón Bähler, Eugenia Laura
Trava-Airoldi, Vladimir Jesús
Brühl, Sonia Patricia
Ghafoor, Naureen
Rogström, Lina
Odén, Magnus
author_facet Dalibón Bähler, Eugenia Laura
Trava-Airoldi, Vladimir Jesús
Brühl, Sonia Patricia
Ghafoor, Naureen
Rogström, Lina
Odén, Magnus
author_sort Dalibón Bähler, Eugenia Laura
title Carbon based coatings deposited on stainless steel : study of thermal degradation
title_short Carbon based coatings deposited on stainless steel : study of thermal degradation
title_full Carbon based coatings deposited on stainless steel : study of thermal degradation
title_fullStr Carbon based coatings deposited on stainless steel : study of thermal degradation
title_full_unstemmed Carbon based coatings deposited on stainless steel : study of thermal degradation
title_sort carbon based coatings deposited on stainless steel : study of thermal degradation
publishDate 2021
url http://hdl.handle.net/20.500.12272/4737
work_keys_str_mv AT dalibonbahlereugenialaura carbonbasedcoatingsdepositedonstainlesssteelstudyofthermaldegradation
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