Characterization of DLC coatings over nitrided stainless steel with and without nitriding pre-treatment using annealing cycles

Amorphous hydrogenated diamond-like carbon (DLC) coatings were deposited using plasma assisted chemical vapour deposition (PACVD) on precipitation hardening (PH) stainless steel. Plasma nitriding has been used as pre-treatment to enhance adhesion and mechanical properties. Chemical and mechanical...

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Autores principales: Dalibón Bähler, Eugenia Laura, Czerwiec, Thierry, Trava-Airoldi, Vladimir Jesús, Ghafoor, Naureen, Rogström, Lina, Odén, Magnus, Brühl, Sonia Patricia
Formato: Artículo publisherVersion info:ar-repo/semantics/art??culo
Lenguaje:Inglés
Publicado: 2020
Materias:
DLC coatings
Thermal stability
Duplex treatment
Nitriding
Acceso en línea:https://www.sciencedirect.com/science/article/pii/S2238785418305933
http://hdl.handle.net/20.500.12272/4630
https://doi.org/10.1016/j.jmrt.2018.12.002
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-4630
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic DLC coatings
Thermal stability
Duplex treatment
Nitriding
spellingShingle DLC coatings
Thermal stability
Duplex treatment
Nitriding
Dalibón Bähler, Eugenia Laura
Czerwiec, Thierry
Trava-Airoldi, Vladimir Jesús
Ghafoor, Naureen
Rogström, Lina
Odén, Magnus
Brühl, Sonia Patricia
Characterization of DLC coatings over nitrided stainless steel with and without nitriding pre-treatment using annealing cycles
topic_facet DLC coatings
Thermal stability
Duplex treatment
Nitriding
description Amorphous hydrogenated diamond-like carbon (DLC) coatings were deposited using plasma assisted chemical vapour deposition (PACVD) on precipitation hardening (PH) stainless steel. Plasma nitriding has been used as pre-treatment to enhance adhesion and mechanical properties. Chemical and mechanical properties of DLC coatings are dependent on the hydrogen content and so on the relation between sp3 /sp2 bondings. The bondings and the structure of the DLC film change with temperature. In this work, a study of the thermal degradation and the evolution of the mechanical properties of DLC coatings over PH stainless steel have been carried out, including the effect of an additional nitrided layer. Nitrided and non-nitrided steel samples were subjected to the same coated in the same conditions, and they were submitted to the same thermal cycles, heating from room temperature to 600 C in several steps. After each cycle, Raman spectra and surface topography measurements were performed ◦ and analyzed. Nanohardness measurements and tribological tests, using a pin-on-disc machine, were carried out to analyze variations in the friction coefficient and the wear resistance. The duplex sample, with nitriding as pre-treatment showed a better thermal stability. For duplex sample, the coating properties, such as adhesion, and friction coefficient were sustained after annealing at higher temperatures; whereas it was not the case for only coated sample.
format Artículo
publisherVersion
info:ar-repo/semantics/art??culo
author Dalibón Bähler, Eugenia Laura
Czerwiec, Thierry
Trava-Airoldi, Vladimir Jesús
Ghafoor, Naureen
Rogström, Lina
Odén, Magnus
Brühl, Sonia Patricia
author_facet Dalibón Bähler, Eugenia Laura
Czerwiec, Thierry
Trava-Airoldi, Vladimir Jesús
Ghafoor, Naureen
Rogström, Lina
Odén, Magnus
Brühl, Sonia Patricia
author_sort Dalibón Bähler, Eugenia Laura
title Characterization of DLC coatings over nitrided stainless steel with and without nitriding pre-treatment using annealing cycles
title_short Characterization of DLC coatings over nitrided stainless steel with and without nitriding pre-treatment using annealing cycles
title_full Characterization of DLC coatings over nitrided stainless steel with and without nitriding pre-treatment using annealing cycles
title_fullStr Characterization of DLC coatings over nitrided stainless steel with and without nitriding pre-treatment using annealing cycles
title_full_unstemmed Characterization of DLC coatings over nitrided stainless steel with and without nitriding pre-treatment using annealing cycles
title_sort characterization of dlc coatings over nitrided stainless steel with and without nitriding pre-treatment using annealing cycles
publishDate 2020
url https://www.sciencedirect.com/science/article/pii/S2238785418305933
http://hdl.handle.net/20.500.12272/4630
https://doi.org/10.1016/j.jmrt.2018.12.002
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