On the origin of dynamicstrainaging in twinning-induced plasticity steels
SCIE
SCOPUS
- Title
- On the origin of dynamicstrainaging in twinning-induced plasticity steels
- Authors
- Lee, SJ; Kim, J; Kane, SN; De Cooman, BC
- Date Issued
- 2011-10
- Publisher
- ERGAMON-ELSEVIER SCIENCE LTD
- Abstract
- Room temperature dynamic strain aging (DSA) is often observed from the beginning of plastic deformation in high Mn Fe 18% Mn-0.6% C and Fe-22% Mn-0.6% C twinning-induced plasticitysteels. Although the phenomenon is in many cases very pronounced, there have up to now been no attempts to explain the phenomenon of room temperature DSA in TWIP steel containing solute C. It is proposed that DSA occurs by a single diffusive jump of the C atom of the point defect complex in the stacking fault region. DSA is only observed when the C atom reorientation time is smaller than the residence time of the stacking fault at the location of the point defect complex. The latter interaction can explain the DSA-suppressing effect of Al, which increases the stacking fault energy. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
- Keywords
- Dynamic strain aging; Point defect complexes; C-Mn reorientation; Internal friction; HADFIELD MANGANESE STEEL; IRON-CARBON MARTENSITE; INTERNAL-FRICTION; SOLID-SOLUTIONS; AUSTENITIC STEELS; RATE SENSITIVITY; MOSSBAUER; ALLOYS; DEFORMATION; NITROGEN
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/17147
- DOI
- 10.1016/J.ACTAMAT.2011.07.040
- ISSN
- 1359-6454
- Article Type
- Article
- Citation
- ACTA MATERIALIA, vol. 59, no. 17, page. 6809 - 6819, 2011-10
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.