A practical condition for migration dynamic recrystallization

Barnett, Matthew 2007, A practical condition for migration dynamic recrystallization, Acta materialia, vol. 55, no. 9, pp. 3271-3278.

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Title A practical condition for migration dynamic recrystallization
Author(s) Barnett, Matthew
Journal name Acta materialia
Volume number 55
Issue number 9
Start page 3271
End page 3278
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2007-05
ISSN 1359-6454
1873-2453
Keyword(s) dynamic recrystallization
metals
boundary mobility
Summary A readily evaluated condition for migration dynamic recrystallization is developed. It is based on the postulate that “the distance traversed by the boundary of a hypothetical growing grain in the time taken for the attainment of a recovery steady state must exceed the size of a critical nucleus”. A method for estimating the boundary mobility based on the kinetics of static recrystallization is also developed to facilitate evaluation of the condition. The derivation focuses first on developing an upper limit for the dynamically recrystallized grain size. This upper limit is only slightly higher than experimental values. The critical condition also agrees well with a limited set of experimental data. These data include the occurrence (and, in two cases, suppression) of dynamic recrystallization in Cu, Ni, Mg, α-Fe, γ-Fe and Al.
Language eng
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
Copyright notice ©2007, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30007328

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