Creep fracture and load transfer in metal–matrix composite

Creep rupture time data of discontinuously reinforced 6061Al–15 vol.% SiCw metal–matrix composite (MMC) have been analyzed. Well-known phenomenological models, usually applied to high-temperature structural metals, such as those described by the Monkman–Grant and Larson–Miller equations, have been u...

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Bibliographic Details
Authors: Fernández, Ricardo, González-Doncel, Gaspar
Format: article
Publication Date:2008
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/35099
Online Access:http://hdl.handle.net/10261/35099
Access Level:Open access
Keyword:Metal–matrix composites (MMCs
Aluminum alloys
Powder processing
Creep rupture
High-temperature deformation
Description
Summary:Creep rupture time data of discontinuously reinforced 6061Al–15 vol.% SiCw metal–matrix composite (MMC) have been analyzed. Well-known phenomenological models, usually applied to high-temperature structural metals, such as those described by the Monkman–Grant and Larson–Miller equations, have been used. Consistent results are obtained when data are analyzed in the context of the effective stress borne by the metallic matrix. Such analysis supports further the relevance of a load transfer mechanism during creep of these MMCs, as previously suggested.