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Title: | Mechanical response under contact loads of AlCrN-coated tool materials |
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Author: | Yang, Jing; Botero Vega, Carlos Alberto; Cornu, Nicolas; Ramírez Sandoval, Giselle; Mestra Rodríguez, Álvaro Miguel; Llanes Pitarch, Luis Miguel |
Other authors: | Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica; Universitat Politècnica de Catalunya. CIEFMA - Centre d'Integritat Estructural, Micromecànica i Fiabilitat dels Materials |
Abstract: | The mechanical behavior under contact loading of systems consisting of PVD AlCrN film deposited onto two distinct hard substrates - cemented carbides and tool steel is studied by means of indentation testing techniques, under monotonic and cyclic condition. Experimental work includes assessment of critical applied loads for emergence of circular cracks at the coating surface, as well as evaluation of both surface and subsurface damage evolution. Results indicate that both coated systems are susceptible to mechanical degradation associated with repetitive contact load. Furthermore, significant differences on contact fatigue behavior between the two studied coated systems are evidenced under consideration of cracking evolution at top surface and penetration towards the substrate. In this regard, the intrinsic mechanical properties of the substrate are pointed out as key feature for rationalizing the experimental findings. |
Subject(s): | -Àrees temàtiques de la UPC::Enginyeria dels materials -Assaigs de materials |
Rights: | Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type: | Article - Published version Conference Object |
Published by: | Institute Of Physics Publishing Ltd |
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