A new type of deformation mechanism map for high-temperature creep
A new type of deformation mechanism map for high-temperature creep
A new type of deformation mechanism map is introduced which is designed for the analysis of high-temperature creep data. The map plots normalized grain size as a function of the reciprocal of the homologous temperature, for temperatures from 0.4 Tm to Tm, where Tm is the melting point of the material in degrees Kelvin. It is demonstrated that the boundaries separating the various fields in grain size-temperature space are straight lines. A simple procedure is presented for constructing maps of this type, and for inserting constant strain rate contours. For mechanisms having the same dependence on stress, such as Newtonian viscous processes, it is shown that these maps are independent of the selected stress level.
103 - 112
Langdon, Terence G
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Mohamed, Farghalli A.
0d8f02a9-fb40-4e5a-9222-3aecf3e4a460
Langdon, Terence G
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Mohamed, Farghalli A.
0d8f02a9-fb40-4e5a-9222-3aecf3e4a460
Langdon, Terence G and Mohamed, Farghalli A.
(1978)
A new type of deformation mechanism map for high-temperature creep.
Materials Science and Engineering, 32 (2), .
(doi:10.1016/0025-5416(78)90029-0).
(In Press)
Abstract
A new type of deformation mechanism map is introduced which is designed for the analysis of high-temperature creep data. The map plots normalized grain size as a function of the reciprocal of the homologous temperature, for temperatures from 0.4 Tm to Tm, where Tm is the melting point of the material in degrees Kelvin. It is demonstrated that the boundaries separating the various fields in grain size-temperature space are straight lines. A simple procedure is presented for constructing maps of this type, and for inserting constant strain rate contours. For mechanisms having the same dependence on stress, such as Newtonian viscous processes, it is shown that these maps are independent of the selected stress level.
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Accepted/In Press date: February 1978
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Local EPrints ID: 495315
URI: http://eprints.soton.ac.uk/id/eprint/495315
ISSN: 0025-5416
PURE UUID: a2d57d8d-2dc7-47cf-901d-d3b21d247f26
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Date deposited: 08 Nov 2024 17:45
Last modified: 09 Nov 2024 02:38
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Author:
Farghalli A. Mohamed
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