Journal article
High resolution electron backscatter diffraction study on the heterogeneities of tetragonal distortion in Fe-C martensite at the microstructural scale
- Abstract:
- Measurements of the local tetragonality in Fe-C martensite at microstructural length-scale through pattern matching of electron backscatter diffraction patterns (EBSPs) and careful calibration of detector geometry are presented. It is found that the local tetragonality varies within the complex microstructure by several per cent at largest and that the scatter in the axial ratio is increased at higher nominal carbon content. At some analysis points the local crystal structure can be regarded as lower symmetry than simple body centred tetragonal. A linear relation between the nominal carbon content and averaged local tetragonality measured by EBSD is also obtained, although the averaged axial ratio is slightly below that obtained from more classical X-ray diffraction measurements.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Accepted manuscript, pdf, 7.2MB, Terms of use)
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- Publisher copy:
- 10.1016/j.actamat.2020.06.017
Authors
- Publisher:
- Elsevier
- Journal:
- Acta Materialia More from this journal
- Volume:
- 195
- Pages:
- 728-738
- Publication date:
- 2020-06-14
- Acceptance date:
- 2020-06-08
- DOI:
- ISSN:
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1359-6454
- Language:
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English
- Keywords:
- Pubs id:
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1148002
- Local pid:
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pubs:1148002
- Deposit date:
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2021-07-08
- ARK identifier:
Terms of use
- Copyright holder:
- Acta Materialia Inc.
- Copyright date:
- 2020
- Rights statement:
- © 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
- Notes:
-
This is the accepted manuscript version of the article. The final version is available from Elsevier at https://doi.org/10.1016/j.actamat.2020.06.017
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