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Inferring dynamic recrystallization in ferrite using the kinetics of static recrystallization

Barnett, Matthew, Kelly, Georgina and Hodgson, Peter 2002, Inferring dynamic recrystallization in ferrite using the kinetics of static recrystallization, Metallurgical and materials transactions. A, Physical metallurgy and materials science, vol. 33A, no. 7, pp. 1893-1900.

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Title Inferring dynamic recrystallization in ferrite using the kinetics of static recrystallization
Author(s) Barnett, Matthew
Kelly, Georgina
Hodgson, Peter
Journal name Metallurgical and materials transactions. A, Physical metallurgy and materials science
Volume number 33A
Issue number 7
Start page 1893
End page 1900
Publisher ASM International
Place of publication Materials Park, Oh.
Publication date 2002-07
ISSN 1073-5623
1543-1940
Summary A general relationship between the kinetics of dynamic and static recrystallization is developed. It is predicted that conventional dynamic recrystallization will occur whenever the deformation time exceeds the adjusted start time for static recrystallization. This approach is verified using data for austenite and lead. It is then applied to current and previous work on ferrite. The model provides support for the contention that conventional dynamic recrystallization occurs in low carbon ferrite if deformation is carried out at high temperatures and low strain rates. In the present work, which was carried out at 700 °C, evidence for dynamic recrystallization was observed for strain rates less than around 0.01 s−1. At higher strain rates, the model predicts a critical strain for the onset of dynamic recrystallization that exceeds the critical strain for the beginning of the recovery steady-state region. While the model allows dynamic recrystallization to begin in this region, the critical strain for its onset is expected to increase rapidly with increasing strain rate and decreasing temperature once steady state has been reached.
Notes Copyright 2002, ASM International. This paper was published in Metallurgical and materials transactions A, Vol. 33A, Issue 7, pp. 1893-1900 and is made available as an electronic reprint with the permission of ASM International. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means,duplications of any material in this paper for a fee or for commercial purposes, or modification of the content of this paper are prohibited.
Language eng
Field of Research 091207 Metals and Alloy Materials
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2002, ASM International
Persistent URL http://hdl.handle.net/10536/DRO/DU:30001746

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