Characteristics of the deformed and recrystallised grains obtained after hot plane strain compression of a model Fe-30wt%Ni alloy

Bai, F., Cizek, P., Palmiere, E.J. and Rainforth, W.M. 2004, Characteristics of the deformed and recrystallised grains obtained after hot plane strain compression of a model Fe-30wt%Ni alloy, Materials science forum, vol. 467, no. 470, pp. 21-26.


Title Characteristics of the deformed and recrystallised grains obtained after hot plane strain compression of a model Fe-30wt%Ni alloy
Author(s) Bai, F.
Cizek, P.
Palmiere, E.J.
Rainforth, W.M.
Journal name Materials science forum
Volume number 467
Issue number 470
Start page 21
End page 26
Publisher Trans Tech
Place of publication Stafa-Zurich, Switzerland
Publication date 2004-10
ISSN 0255-5476
Keyword(s) crystallographic texture
recrystallization
plane strain compression
hot deformation
subgrain structure
electron backscattered diffraction (EBSD)
Summary The development of physically-based models of microstructural evolution during hot deformation of metallic materials requires knowledge of the grain/subgrain structure and crystallographic texture characteristics over a range of processing conditions. A Fe-30wt%Ni based alloy, retaining a stable austenitic structure at room temperature, was used for modelling the development of austenite microstructure during hot deformation of conventional carbon-manganese steels. A series of plane strain compression tests was carried out at a temperature of 950 °C and strain rates of 10 s-1 and 0.1 s-1 to several strain levels. Evolution of the grain/subgrain structure and crystallographic texture was characterised in detail using quantitative light microscopy and highresolution electron backscatter diffraction. Crystallographic texture characteristics were determined separately for the observed deformed and recrystallised grains. The subgrain geometry and dimensions together with the misorientation vectors across sub-boundaries were quantified in detail across large sample areas and the orientation dependence of these characteristics was determined. Formation mechanisms of the recrystallised grains were established in relation to the deformation microstructure.
Language eng
Field of Research 091207 Metals and Alloy Materials
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2004, Trans Tech Publications, Switzerland
Persistent URL http://hdl.handle.net/10536/DRO/DU:30025764

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