The mechanical properties of ultrafine-grained metals at elevated temperatures
The mechanical properties of ultrafine-grained metals at elevated temperatures
Ultrafine-grained materials, having grain sizes in the submicrometer or nanometer range, may be readily produced by processing bulk solids through the application of severe plastic deformation (SPD) and this leads to the possibility of revealing different flow mechanisms when these materials are tested at elevated temperatures. Experiments show the two-phase Zn-22% Al alloy and various magnesium alloys exhibit excellent superplastic properties after processing by SPD whereas it is not possible to reveal different creep mechanisms in high-purity aluminum because the ultrafine grains are unstable at high temperatures
1-12
Figueiredo, Roberto B.
2e0060b8-6368-4d87-825a-c3cb90e92145
Kawasaki, Megumi
944ba471-eb78-46db-bfb7-3f0296d9ef6d
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2009
Figueiredo, Roberto B.
2e0060b8-6368-4d87-825a-c3cb90e92145
Kawasaki, Megumi
944ba471-eb78-46db-bfb7-3f0296d9ef6d
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Figueiredo, Roberto B., Kawasaki, Megumi and Langdon, Terence G.
(2009)
The mechanical properties of ultrafine-grained metals at elevated temperatures.
Reviews on Advanced Materials Science, 19 (1/2), .
Abstract
Ultrafine-grained materials, having grain sizes in the submicrometer or nanometer range, may be readily produced by processing bulk solids through the application of severe plastic deformation (SPD) and this leads to the possibility of revealing different flow mechanisms when these materials are tested at elevated temperatures. Experiments show the two-phase Zn-22% Al alloy and various magnesium alloys exhibit excellent superplastic properties after processing by SPD whereas it is not possible to reveal different creep mechanisms in high-purity aluminum because the ultrafine grains are unstable at high temperatures
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Published date: 2009
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 67365
URI: http://eprints.soton.ac.uk/id/eprint/67365
ISSN: 1605-8127
PURE UUID: 20412c5f-2ba8-4e32-8e2c-e7381bc173b2
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Date deposited: 20 Aug 2009
Last modified: 28 Apr 2022 01:50
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Contributors
Author:
Roberto B. Figueiredo
Author:
Megumi Kawasaki
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