Recrystallization of 304SS during and after high strain rate deformation

Taylor, A.S. and Hodgson, P.D. 2013, Recrystallization of 304SS during and after high strain rate deformation, Materials science forum, vol. 753, pp. 403-406, doi: 10.4028/

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Title Recrystallization of 304SS during and after high strain rate deformation
Author(s) Taylor, A.S.
Hodgson, P.D.
Journal name Materials science forum
Volume number 753
Start page 403
End page 406
Total pages 4
Publisher Trans Tech Publications
Place of publication Stafa-Zurich, Switzerland
Publication date 2013
ISSN 0255-5476
Keyword(s) austenitic stainless steel
axisymmetric compression
High Z
Summary During the hot working of austenitic stainless steels the shape of the flow curve is strongly influenced by the strain rate. Low strain rate deformation results in flow curves typical of dynamic recrystallization (DRX) but as the strain rate increases the shape changes to a ‘flat-top’ curve. This has traditionally been thought to indicate no DRX is taking place and that dynamic recovery (DRV) is the only operating softening mechanism. Examining the work-hardening behaviour and corresponding deformation microstructures showed this is not the case for austenitic stainless steel, as clear evidence of dynamic recrystallization process can be seen. The post-deformation recrystallization kinetics can be modelled using a standard Avrami equation with an Avrami exponent, n, of 1.15. With an increasing value of the Zener-Hollomon parameter it was found that the kinetics of recrystallization become less strain rate sensitive until at the highest values (highest strain rates/lowest temperatures) the recrystallization kinetics become strain rate insensitive.
Language eng
DOI 10.4028/
Field of Research 109999 Technology not elsewhere classified
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
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Document type: Journal Article
Collections: Institute for Frontier Materials
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