Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/35038
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Threshold stress and load partitioning during creep of metal matrix composites |
Autor: | Fernández, Ricardo CSIC ORCID CVN; González-Doncel, Gaspar | Palabras clave: | Metal matrix composites Aluminum alloys Creep Powder processing |
Fecha de publicación: | jun-2008 | Editor: | Elsevier | Citación: | Acta Materialia 56(11): 2549-2562 (2008) | Resumen: | The threshold stress, ro, included in the creep equation to explain the high-temperature behavior of discontinuously reinforced metal matrix composites (MMCs) is criticized on the basis of microstructural considerations and a new creep data analysis. An alternative interpretation, based on changes in the composite matrix microstructure and, in particular, a load transfer mechanism, is proposed. The resulting creep equation is similar to that in which ro is used: in essence, ro is simply replaced by the stress carried by the reinforcement (referred to as rT). New creep data on 6061Al–15 vol.% SiCw composite and the corresponding unreinforced alloy, allowing direct experimental assessment of composite creep strengthening, Dr, are analyzed. The linear dependence found of Dr with the applied stress, r, Dr(r), correlates reasonably well with shear-lag and Eshelby model predictions of rT, transferred during composite creep deformation. The possible occurrence of damage mechanisms and the complexity of modeling these mechanisms to predict the overall composite creep behavior are also discussed. | Descripción: | Corrigendum: an error was noted by the authors regarding the calculation of the matrix strengthening factor during creep of MMCs through equations (5) and (6). | Versión del editor: | http://dx.doi.org/10.1016/j.actamat.2008.01.037 | URI: | http://hdl.handle.net/10261/35038 | DOI: | 10.1016/j.actamat.2008.01.037 | ISSN: | 1359-6454 |
Aparece en las colecciones: | (CENIM) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
A-07-1353.pdf | 2,74 MB | Adobe PDF | Visualizar/Abrir | |
Corrigendum_to_paper_A-07-1353R2.pdf | 113,6 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
76
checked on 25-mar-2024
WEB OF SCIENCETM
Citations
66
checked on 28-feb-2024
Page view(s)
332
checked on 28-mar-2024
Download(s)
491
checked on 28-mar-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.