Predicting the stress-strain behaviour of carbon steels under hot working conditions:An irreversible thermodynamics model

Huang, Mingxin and Rivera-Díaz-del-Castillo, Pedro E.J. and Perlade, Astrid and Bouaziz, Olivier and van der Zwaag, Sybrand (2009) Predicting the stress-strain behaviour of carbon steels under hot working conditions:An irreversible thermodynamics model. Scripta Materialia, 61 (6). pp. 648-651. ISSN 1359-6462

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Abstract

An irreversible thermodynamics treatment of plastic deformation is re-formulated to include the effects of steel chemistry in austenite hot rolling. By relating the entropy to the relevant fluxes and forces, the assumption dS ∝ d τ / T is removed, where S and τ are the entropy and stress at temperature T. The effect of composition is incorporated in the activation energy for cross-slip, obtaining a good description of the stress-strain behaviour of various grades as a function of temperature and strain rate.

Item Type:
Journal Article
Journal or Publication Title:
Scripta Materialia
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3104
Subjects:
ID Code:
125514
Deposited By:
Deposited On:
25 May 2018 09:06
Refereed?:
Yes
Published?:
Published
Last Modified:
25 Feb 2020 08:22