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The determination of the activation energy for superplastic flow

The determination of the activation energy for superplastic flow
The determination of the activation energy for superplastic flow
There is a unique activation energy for superplastic flow, which may be determined from tests performed either at constant strain rate or at constant stress. Three methods are described for obtaining the activation energy, and the procedures are illustrated using experimental data for the Zn–22% Al eutectoid alloy. It is shown that discrepancies in the published data cannot be attributed to differences in the activation energy under constant stress and constant strain rate conditions.
375-381
Mohamed, F.A.
228f2a10-5982-45eb-a50f-5c1465821a8f
Langdon, Terence G
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Mohamed, F.A.
228f2a10-5982-45eb-a50f-5c1465821a8f
Langdon, Terence G
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Mohamed, F.A. and Langdon, Terence G (1976) The determination of the activation energy for superplastic flow. Physica Status Solidi, 33 (1), 375-381. (doi:10.1002/pssa.2210330140).

Record type: Article

Abstract

There is a unique activation energy for superplastic flow, which may be determined from tests performed either at constant strain rate or at constant stress. Three methods are described for obtaining the activation energy, and the procedures are illustrated using experimental data for the Zn–22% Al eutectoid alloy. It is shown that discrepancies in the published data cannot be attributed to differences in the activation energy under constant stress and constant strain rate conditions.

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Published date: 1976

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Local EPrints ID: 493713
URI: http://eprints.soton.ac.uk/id/eprint/493713
DOI: doi:10.1002/pssa.2210330140
PURE UUID: acf88547-ad87-4323-b106-ce78271138fe
ORCID for Terence G Langdon: ORCID iD orcid.org/0000-0003-3541-9250

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Date deposited: 11 Sep 2024 17:03
Last modified: 12 Sep 2024 01:38

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Author: F.A. Mohamed
Author: Terence G Langdon ORCID iD

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