Unusual crystallographic aspects of Microband boundaries within {111}<110> oriented grains in a cold rolled interstitial free steel
Microbands are well-known deformation features that generate in the rolling microstructures of many metals and alloys. The boundaries across two neighbouring microbands are comprised of dense dislocation walls and they accommodate a small average crystallographic rotation in the range of 1–4°. In th...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Iron and Steel Institute of Japan
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/50191 |
| _version_ | 1848758417269719040 |
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| author | Zinnia, N. Quadir, Md Zakaria Munroe, P. Ferry, M. |
| author_facet | Zinnia, N. Quadir, Md Zakaria Munroe, P. Ferry, M. |
| author_sort | Zinnia, N. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Microbands are well-known deformation features that generate in the rolling microstructures of many metals and alloys. The boundaries across two neighbouring microbands are comprised of dense dislocation walls and they accommodate a small average crystallographic rotation in the range of 1–4°. In this study, a combination of high resolution electron backscattered diffraction (EBSD) and transmission electron microscopy (TEM) was used to observe orientation differences of up to 20° across microband boundaries in the rolling substructures of {111}<110> oriented grains in steel. Despite their high angle nature, the microband interfaces maintain their well-known crystallographic characteristics, by being closely aligned with highly stressed slip planes. Rigid body rotations are argued to take place around the interface normal between adjacent microband lattices. This results in an unusual microstructure whereby alternating microband boundaries, oriented in equal and opposite relative angles, produce an array of orientation pairs in their spatial distributions. © 2014 Iron and Steel Institute of Japan. |
| first_indexed | 2025-11-14T09:43:39Z |
| format | Journal Article |
| id | curtin-20.500.11937-50191 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:43:39Z |
| publishDate | 2014 |
| publisher | Iron and Steel Institute of Japan |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-501912017-09-13T15:38:02Z Unusual crystallographic aspects of Microband boundaries within {111}<110> oriented grains in a cold rolled interstitial free steel Zinnia, N. Quadir, Md Zakaria Munroe, P. Ferry, M. Microbands are well-known deformation features that generate in the rolling microstructures of many metals and alloys. The boundaries across two neighbouring microbands are comprised of dense dislocation walls and they accommodate a small average crystallographic rotation in the range of 1–4°. In this study, a combination of high resolution electron backscattered diffraction (EBSD) and transmission electron microscopy (TEM) was used to observe orientation differences of up to 20° across microband boundaries in the rolling substructures of {111}<110> oriented grains in steel. Despite their high angle nature, the microband interfaces maintain their well-known crystallographic characteristics, by being closely aligned with highly stressed slip planes. Rigid body rotations are argued to take place around the interface normal between adjacent microband lattices. This results in an unusual microstructure whereby alternating microband boundaries, oriented in equal and opposite relative angles, produce an array of orientation pairs in their spatial distributions. © 2014 Iron and Steel Institute of Japan. 2014 Journal Article http://hdl.handle.net/20.500.11937/50191 10.2355/isijinternational.54.1346 Iron and Steel Institute of Japan unknown |
| spellingShingle | Zinnia, N. Quadir, Md Zakaria Munroe, P. Ferry, M. Unusual crystallographic aspects of Microband boundaries within {111}<110> oriented grains in a cold rolled interstitial free steel |
| title | Unusual crystallographic aspects of Microband boundaries within {111}<110> oriented grains in a cold rolled interstitial free steel |
| title_full | Unusual crystallographic aspects of Microband boundaries within {111}<110> oriented grains in a cold rolled interstitial free steel |
| title_fullStr | Unusual crystallographic aspects of Microband boundaries within {111}<110> oriented grains in a cold rolled interstitial free steel |
| title_full_unstemmed | Unusual crystallographic aspects of Microband boundaries within {111}<110> oriented grains in a cold rolled interstitial free steel |
| title_short | Unusual crystallographic aspects of Microband boundaries within {111}<110> oriented grains in a cold rolled interstitial free steel |
| title_sort | unusual crystallographic aspects of microband boundaries within {111}<110> oriented grains in a cold rolled interstitial free steel |
| url | http://hdl.handle.net/20.500.11937/50191 |