Tribological behaviourof a multilayer CrN/DLC coating obtained using PVD-MS

Diamond-like Carbon (DLC) coatings are used as protective layers for steel components dueto their hardness, chemical inertia and interesting tribological properties. Reducing wear and friction coefficient is of great importance for industries today in order to increase energy efficiency and reduce h...

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Detalles Bibliográficos
Autores principales: Delfín, Francisco Andrés, Brühl, Sonia Patricia
Formato: Artículo draft
Lenguaje:Inglés
Publicado: 2022
Materias:
DLC
PVD multilayer
Carbon coating
Tribology
Acceso en línea:http://hdl.handle.net/20.500.12272/6801
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-6801
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
PVD multilayer
Carbon coating
Tribology
spellingShingle DLC
PVD multilayer
Carbon coating
Tribology
Delfín, Francisco Andrés
Brühl, Sonia Patricia
Tribological behaviourof a multilayer CrN/DLC coating obtained using PVD-MS
topic_facet DLC
PVD multilayer
Carbon coating
Tribology
description Diamond-like Carbon (DLC) coatings are used as protective layers for steel components dueto their hardness, chemical inertia and interesting tribological properties. Reducing wear and friction coefficient is of great importance for industries today in order to increase energy efficiency and reduce harmful emissions to the environment. In this paper, a multilayer CrN/DLC coating is analysed. It was deposited using a commercial Plasma Enhanced Magnetron Sputtering over nitrided and not nitrided mild-alloy steel AISI 4140, produced for the first time in Argentina, at the firm Coating.Tech by Flubetech-Tantal. The base of the coating is an anchor layer made of CrN and the top layer is a chromium-dopped hydrogenated amorphous carbon (a-C:H:Cr), which provides excellent tribological properties. Wear tests were carried out in a Pin-on-Disk apparatus, using an Al2O3 ball as counterpart, with Hertzian contact stress from 1370 up to 1460 MPa. The friction coefficient was μ~0.1, which is 80% less than the untreated steel and the wear volume loss was reduced eight times. The adhesion was evaluated by means of Scratch Test, where major improvement was noticed in the samples which were nitrided as pre-treatment, increasing critical load from 25 N up to 65 N.
format Artículo
draft
author Delfín, Francisco Andrés
Brühl, Sonia Patricia
author_facet Delfín, Francisco Andrés
Brühl, Sonia Patricia
author_sort Delfín, Francisco Andrés
title Tribological behaviourof a multilayer CrN/DLC coating obtained using PVD-MS
title_short Tribological behaviourof a multilayer CrN/DLC coating obtained using PVD-MS
title_full Tribological behaviourof a multilayer CrN/DLC coating obtained using PVD-MS
title_fullStr Tribological behaviourof a multilayer CrN/DLC coating obtained using PVD-MS
title_full_unstemmed Tribological behaviourof a multilayer CrN/DLC coating obtained using PVD-MS
title_sort tribological behaviourof a multilayer crn/dlc coating obtained using pvd-ms
publishDate 2022
url http://hdl.handle.net/20.500.12272/6801
work_keys_str_mv AT delfinfranciscoandres tribologicalbehaviourofamultilayercrndlccoatingobtainedusingpvdms
AT bruhlsoniapatricia tribologicalbehaviourofamultilayercrndlccoatingobtainedusingpvdms
bdutipo_str Repositorios
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