Paper Titles
Preface
Solute Drag and Entropy Production - Two Approaches to the Same Phenomenon
p.3
Texture and Microstructure of the Austenite in Multiphased Steel Sheets
p.11
Characteristics of the Deformed and Recrystallised Grains Obtained after Hot Plane Strain Compression of a Model Fe-30wt%Ni Alloy
p.21
Study of Deformation Microstructure and Static Recovery in Copper after Cold Drawing
p.27
Potentiality of Mean-Field Approaches for Recrystallisation: Characterization of the Deformed State of Polycrystals
p.33
Evaluation of Stored Energy in Cold-Rolled IF Steels from EBSD Data and Its Application to Recrystallization Modeling
p.39
An Impingement – Spheroidisation Theory for Nucleation and Grain Growth
p.45
Estimation of Stored Energy Distribution from EBSD Measurements
p.51

Characteristics of the Deformed and Recrystallised Grains Obtained after Hot Plane Strain Compression of a Model Fe-30wt%Ni Alloy

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Abstract:

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.

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Periodical:

Materials Science Forum (Volumes 467-470)

Pages:

21-26

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.467-470.21

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Online since:

October 2004

Authors:

F. Bai, P. Cizek, Eric J. Palmiere, W. Mark Rainforth

Keywords:

Crystallographic Texture, Electron Backscatter Diffraction (EBSD), Hot Deformation, Plane Strain Compression, Recrystallization, Subgrain Structure

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© 2004 Trans Tech Publications Ltd. All Rights Reserved

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References

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