1) Investigación >
Artículos Publicados >

Por favor, use este identificador para citar o enlazar este ítem:

Título : Fatigue behavior of a structural steel coated with a WC–10Co–4Cr/Colmonoy 88 deposit by HVOF thermal spraying
Autor : La Barbera-Sosa, J.G.
Santana, Y.Y.
Villalobos-Gutiérrez, C.
Chicot, D.
Lesage, J.
Decoopman, X.
Iost, A.
Staia, M.H.
Puchi-Cabrera, E.S.
Palabras clave : Fatigue
Colmonoy 88
Fecha de publicación : 2013
Editorial : Elsevier
Citación :
Citación : Surface and Coatings Technology;220
Resumen : The fatigue behavior of a SAE 4340 steel, coated with a 50% WC–10Co–4Cr/50% Colmonoy 88 deposit, by high velocity oxygen fuel (HVOF) thermal spray, has been investigated. The change in the maximum alternating stress with the number of cycles to fracture has been described by means of the relationship advanced by Stromeyer. A fractographic analysis has been carried out on some representative fracture surfaces, by means of scanning electron microscopy (SEM) techniques. The mechanical properties of the coating were characterized by means of nanoindentation tests. The results indicate that the coating is highly heterogeneous. Its deposition gives rise to a decrease in the fatigue strength of the substrate of ∼30%, in comparison with the uncoated substrate. The decrease in fatigue strength is due to the presence of stress concentrators at the substrate–coating interface, as well as the intrinsic characteristics of the coating.
ISSN : 0257-8972
Aparece en las colecciones: Artículos Publicados

Ficheros en este ítem:

Fichero Descripción Tamaño Formato
La Barbera et al SCT 2013.pdf98.68 kBAdobe PDFVisualizar/Abrir

Los ítems de DSpace están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.


Valid XHTML 1.0! DSpace Software Copyright © 2002-2008 MIT and Hewlett-Packard - Comentarios