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Formation of ultrafine ferrite by dynamic strain-induced transformation

Beladi, H., Hodgson, P. D. and Adachi, Y. 2008, Formation of ultrafine ferrite by dynamic strain-induced transformation, in MS & T 2008 : Materials Science & Technology Conference and Exhibition : October 5-9, 2008, David L. Lawrence Convention Center, Pittsburgh, Pennsylvania : conference proceedings, Materials Science & Technology Conference, Warrendale, Pa., pp. 1756-1763.

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Title Formation of ultrafine ferrite by dynamic strain-induced transformation
Author(s) Beladi, H.
Hodgson, P. D.
Adachi, Y.
Conference name Materials Science & Technology Conference (2008 : Pittsburgh, Pa.)
Conference location Pittsburgh, Pennsylvania
Conference dates 5-9 October 2008
Title of proceedings MS & T 2008 : Materials Science & Technology Conference and Exhibition : October 5-9, 2008, David L. Lawrence Convention Center, Pittsburgh, Pennsylvania : conference proceedings
Editor(s) [Unknown]
Publication date 2008
Conference series Materials Science and Technology Conference
Start page 1756
End page 1763
Total pages 8
Publisher Materials Science & Technology Conference
Place of publication Warrendale, Pa.
Keyword(s) Steels
Transformation
Ultrafine ferrite
Ni-30Fe alloy
Summary In the current study, the role of dynamic strain induced transformation on ferrite grain refinement was investigated using different thermomechanical processing routes. A Ni-30Fe austenitic model alloy was also employed to study the evolution of the deformation structure under different deformation conditions. It was shown that the extreme refinement of ferrite is more likely due to the formation of extensive high angle intragranular defects in the austenite through deformation. Among the different thermomechanical parameters, the deformation temperature had a significant effect on the intragranular defect characteristics. There was a transition where the cell dislocation structure changed to laminar microband structures with a decrease in the deformation temperature. Moreover, the ultrafine grained structure was also successfully produced through static transformation using warm deformation process; in other words, concurrent deformation and transformation are not necessary for ultrafine ferrite formation.
ISBN 9780871707239
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 970109
HERDC Research category E1 Full written paper - refereed
Copyright notice ©2008, Materials Science & Technology Conference
Persistent URL http://hdl.handle.net/10536/DRO/DU:30018282

Document type: Conference Paper
Collections: Centre for Material and Fibre Innovation
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.