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Understanding the deformed microstructure of cold-rolled IF and LC steel

journal contribution
posted on 2005-01-01, 00:00 authored by Mark Nave, Matthew BarnettMatthew Barnett
This paper presents an overview of a series of investigations of the microstructure and texture of cold-rolled IF and LC steel. The investigations made extensive use of orientation mapping using electron backscattered diffraction (EBSD) in a field emission gun scanning electron microscope (FEG-SEM). The effect of grain boundaries on the deformed microstructure was examined by comparing the textures of regions near grain boundaries and in the interiors of grains.  A general weakening of the texture, but a strengthening of the {OOI}<110> component, occurs in the vicinity of grain boundaries. Misorientation angle and axis distributions were used to characterise the fragmentation of grains belonging to different orientation classes. The influence of carbon on the deformed microstructure and nucleation during recrystallization was clarified by examining the microstructures of LC and IF steels during rolling and annealing. The
results of the investigations emphasize the important role of shear banding in determining the fragmentation behaviour of ND-fibre grains and the orientations of viable recrystallization nuclei within the deformed microstructure.

History

Journal

Materials forum

Volume

29

Pagination

562 - 567

Publisher

Institute of Materials Engineering Australasia

Location

North Melbourne, Vic

ISSN

1447-6738

Language

eng

Notes

Reproduced with the specific permission of the copyright owner.

Publication classification

C1 Refereed article in a scholarly journal; C Journal article

Copyright notice

2005, Institute of Materials Engineering Australasia

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