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Creep behaviour of discontinuously-reinforced metal matrix composites

Creep behaviour of discontinuously-reinforced metal matrix composites
Creep behaviour of discontinuously-reinforced metal matrix composites
Discontinuously reinforced metal-matrix composites (MMCs) have extensive potential for use in structural applications at elevated temperatures. However, any use at high temperatures will require a detailed understanding of the creep characteristics of the MMCs and especially the dependence of the measured creep rates on the magnitudes of the applied stress and the testing temperatures. This report examines these characteristics with special reference to the well-documented creep behavior of conventional solid-solution alloys. It is shown that creep of these MMCs is controlled by deformation in the matrix alloys and this deformation may be interpreted using a similar approach to that already developed for the creep of solid solution alloys. However, additional parameters must be considered in analyzing the creep of MMCs, including the possible presence of a threshold stress and the potential for load transfer and additional substructural strengthening.
1047-4838
15-20
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Huang, Yi and Langdon, T.G. (2003) Creep behaviour of discontinuously-reinforced metal matrix composites. JOM Journal of the Minerals, Metals and Materials Society, 55 (1), 15-20. (doi:10.1007/s11837-003-0187-7).

Record type: Article

Abstract

Discontinuously reinforced metal-matrix composites (MMCs) have extensive potential for use in structural applications at elevated temperatures. However, any use at high temperatures will require a detailed understanding of the creep characteristics of the MMCs and especially the dependence of the measured creep rates on the magnitudes of the applied stress and the testing temperatures. This report examines these characteristics with special reference to the well-documented creep behavior of conventional solid-solution alloys. It is shown that creep of these MMCs is controlled by deformation in the matrix alloys and this deformation may be interpreted using a similar approach to that already developed for the creep of solid solution alloys. However, additional parameters must be considered in analyzing the creep of MMCs, including the possible presence of a threshold stress and the potential for load transfer and additional substructural strengthening.

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More information

Published date: January 2003
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 196277
URI: http://eprints.soton.ac.uk/id/eprint/196277
ISSN: 1047-4838
PURE UUID: 4b0bcabe-f121-46b9-b117-b156dd4b4322
ORCID for Yi Huang: ORCID iD orcid.org/0000-0001-9259-8123
ORCID for T.G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 06 Sep 2011 07:49
Last modified: 15 Mar 2024 03:39

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Contributors

Author: Yi Huang ORCID iD
Author: T.G. Langdon ORCID iD

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