Title :

The effect of the substrate surface state on the morphology, topography and tribocorrosion behavior of Si/Zr sol-gel coated 316L stainless steel

Author(s) :

Kossman, Stephania [Auteur]
Mechanics surfaces and materials processing [MSMP]
Bertolucci Coelho, Leonardo [Auteur]
Université de Mons / University of Mons [UMONS]
Montagne, Alex [Auteur]
Mechanics surfaces and materials processing [MSMP]
Mejias, Alberto [Auteur]
Université de Lille, Sciences et Technologies
Mechanics surfaces and materials processing [MSMP]
Van Gorp, Adrien [Auteur]
Mechanics surfaces and materials processing [MSMP]
Coorevits, Thierry [Auteur]
Mechanics surfaces and materials processing [MSMP]
Touzin, Matthieu [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Druart, Marie-Eve [Auteur]
Université de Mons / University of Mons [UMONS]
Staia, Mariana [Auteur]
Universidad Central de Venezuela [UCV]
Mechanics surfaces and materials processing [MSMP]
Poorteman, Marc [Auteur]
Université de Mons / University of Mons [UMONS]
Olivier, Marie-Georges [Auteur]
Université de Mons / University of Mons [UMONS]

Journal title :

Surface and Coatings Technology

Abbreviated title :

Surface and Coatings Technology

Pages :

126666

Publisher :

Elsevier BV

Publication date :

2020-11-20

ISSN :

0257-8972

English keyword(s) :

Sol-gel coatings
Morphology
Topography
Tribocorrosion
Stainless steel

HAL domain(s) :

Chimie/Matériaux
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]

English abstract : [en]

In the present work, a Si/Zr based sol–gel (SG) coating was deposited on 316L stainless steel plates, previously treated by passivation (SSO) or electropolishing (SSEP) producing two different surface states. The SG coatings ...
Show more >In the present work, a Si/Zr based sol–gel (SG) coating was deposited on 316L stainless steel plates, previously treated by passivation (SSO) or electropolishing (SSEP) producing two different surface states. The SG coatings were compared for SSO and SSEP substrates in terms of morphology, topography and tribocorrosion response. The coating topography revealed a smoother surface for the Si/Zr-SSEP system. The coating deposited on the smoothest surface (Si/Zr-SSEP) presented half of the thickness of the one deposited on the roughest surface (Si/Zr-SSO). Tribocorrosion behavior was studied under potentiostatic control at anodic potential with a continuous recording of current (I) during sliding (pin-on-disc and alumina ball counterbody). Both SG systems showed an increase of current upon 100 sliding contact cycles indicating corrosion activity. After tribocorrosion tests, both systems revealed scratches, typical of abrasion, and coating removal in the wear tracks; the alumina counterparts presented accumulation of wear particles adhered to their surfaces. In conclusion, the initial surface state of the substrate modified the coating thickness, topography but did not significantly alter the tribocorrosion response of the studied SG systems.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Métallurgie Physique et Génie des Matériaux

Submission date :

2020-11-26T14:36:21Z
2020-11-27T11:56:38Z