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Application of the interfacial indentation test for adhesion toughness determination

type de publication      article in an international journal with refereeing comitee
date de publication 2005
auteur(s) Chicot Didier; Araujo P.; Horny Nicolas; Tricoteaux Arnaud; Lesage Jacky
journal (abréviation) Surface and Coatings Technology (SCT)
volume (numéro) 200 (1-4)
pages 174 – 177
résumé Interfacial indentation is used to create and propagate a crack in the interface between a coating and its substrate. This methodology allows defining an apparent interface toughness, which can represent the adhesion of the coating on its substrate. During their lives, thermal spray coatings are subjected to various external solicitations, which could be detrimental to their adhesion: thermal shocks, fatigue, wear, corrosion… The objective of the present work is to study some of these effects and their influence on the interface adhesion toughness of various substrate and coating couples. Annealing treatment, hydrogen contamination and thermal treatments are especially studied in relation to the modification of the residual stresses state.
mots clés Coatings; Adhesion; Interface toughness; Residual stress
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