Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/4304
Title: A model for coated surface hardness
Authors: Fernandes, J. V. 
Trindade, A. C. 
Menezes, L. F. 
Cavaleiro, A. 
Keywords: Thin films; Indentation; Hardness; Modelling
Issue Date: 2000
Citation: Surface and Coatings Technology. 131:1-3 (2000) 457-461
Abstract: The authors present a model that predicts the hardness of a film deposited on the surface of a substrate. The model is based on a simple mathematical relationship involving the hardness of the film and the hardness of the substrate, together with the hardness of the composite film/substrate at a given film thickness/penetration depth ratio. The parameters of the present model depend on the mechanical properties of the film/substrate pair and can be experimentally determined by using depth-sensing hardness instruments. In the models found in the literature, the equation parameters are constants typical for each model. The present model is proposed and validated for the case of a film (W-C-Co coating) harder than the substrate (various metallic materials) and it allows determination of the film hardness without the need to determine either the film thickness or the substrate hardness.
URI: http://hdl.handle.net/10316/4304
Rights: openAccess
Appears in Collections:FCTUC Eng.Mecânica - Artigos em Revistas Internacionais

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