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Hot deformation and recrystallization of austenitic stainless steel: part 1. dynamic recrystallization

Dehghan-Manshadi, A., Barnett, M. and Hodgson, P. 2008, Hot deformation and recrystallization of austenitic stainless steel: part 1. dynamic recrystallization, Metallurgical and materials transactions A - physical metallurgy and materials science, vol. 39, no. 6, pp. 1359-1370, doi: 10.1007/s11661-008-9512-7.

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Title Hot deformation and recrystallization of austenitic stainless steel: part 1. dynamic recrystallization
Author(s) Dehghan-Manshadi, A.
Barnett, M.ORCID iD for Barnett, M. orcid.org/0000-0001-8287-9044
Hodgson, P.
Journal name Metallurgical and materials transactions A - physical metallurgy and materials science
Volume number 39
Issue number 6
Start page 1359
End page 1370
Total pages 12
Publisher Springer
Place of publication Boston, Mass.
Publication date 2008-06
ISSN 1073-5623
1543-1940
Summary The hot deformation behavior of a 304 austenitic stainless steel was investigated to characterize the evolution of the dynamically recrystallized structure as a starting point for studies of the postdeformation  recrystallization behavior. The effect of different deformation parameters such as strain, strain rate, and temperature were investigated. The flow curves showed typical signs of dynamic recrystallization (DRX) over a wide range of temperatures and strain rates (i.e., different Zener–Hollomon (Z) values). However, under very high or very low Z values, the flow curves’ shapes changed toward those of the dynamic recovery and multiple peaks, respectively. The results showed that while DRX starts at a strain as low as 60 pct of the peak strain, a fully DRX microstructure needs a high strain of almost 4.5 times the initiation strain. The DRX average grain size showed power-law functions with both the Zener–Hollomon parameter and the peak stress, although power-law breakdown was observed at high Z values.
Language eng
DOI 10.1007/s11661-008-9512-7
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2008
Copyright notice ©2008, Maney publishing
Persistent URL http://hdl.handle.net/10536/DRO/DU:30017620

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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