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Hot deformation and recrystallization of austenitic stainless steel: Part 11. post-deformation recrystallization

Dehghan-Manshadi, A., Barnett, M. and Hodgson, P. 2008, Hot deformation and recrystallization of austenitic stainless steel: Part 11. post-deformation recrystallization, Metallurgical and materials transactions A - physical metallurgy and materials science, vol. 39, no. 6, pp. 1371-1381.


Title Hot deformation and recrystallization of austenitic stainless steel: Part 11. post-deformation recrystallization
Author(s) Dehghan-Manshadi, A.
Barnett, M.
Hodgson, P.
Journal name Metallurgical and materials transactions A - physical metallurgy and materials science
Volume number 39
Issue number 6
Start page 1371
End page 1381
Publisher Springer Boston
Place of publication Boston, Mass.
Publication date 2008-06
ISSN 1073-5623
1543-1940
Summary The postdeformation recrystallization behavior of a hot-deformed austenitic stainless steel was investigated based on the first part of this study, in which the microstructure development during hot deformation and, in particular, the evolution of dynamic recrystallization (DRX), was studied. The effect of different parameters such as strain, strain rate, and temperature were examined. The dependency of the time for 50 pct softening, t 50, changed from “strain dependent” to “strain independent” at a transition strain (ε*) that was in the steady-state area of the hot deformation flow curve. The fully recrystallized microstructure showed a similar transition in strain sensitivity. However, this occurred at stains greater than ε*. A mathematical model was developed to predict the transition strain under different deformation conditions. Microstructural measurements show that the transition strain corresponds to approximately 50 pct DRX in the deformed structure at the point of unloading.
Language eng
Field of Research 091207 Metals and Alloy Materials
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2008
Persistent URL http://hdl.handle.net/10536/DRO/DU:30017619

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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Created: Fri, 14 Aug 2009, 13:55:18 EST