Journal
SCRIPTA MATERIALIA
Volume 63, Issue 10, Pages 961-964Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2010.07.016
Keywords
TWIP steels; Work hardening; Structural properties of twins; Transmission electron microscopy (TEM)
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Funding
- Belgian State Federal Office for Scientific, Technical and Cultural Affairs [P6/24]
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Fe-Mn-C and Fe-Mn-Si-Al TWIP steels deformed under the same conditions exhibit different work-hardening rates. The present study investigates the microstructure of plastically deformed Fe-Mn-C and Fe-Mn-Si-Al samples, particularly the internal structure of the mechanically generated twins and their topology at the grain scale. Twins in the Fe-Mn-C steel are finer and full of sessile dislocations, rendering this material distinctly stronger with an improved work-hardening rate. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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