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