Work hardening associated with epsilon-martensitic transformation, deformation twinning and dynamic strain aging in Fe-17Mn-0.6C and Fe-17Mn-0.8C TWIP steels
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- Title
- Work hardening associated with epsilon-martensitic transformation, deformation twinning and dynamic strain aging in Fe-17Mn-0.6C and Fe-17Mn-0.8C TWIP steels
- Authors
- Koyama, M; Sawaguchi, T; Lee, T; Lee, CS; Tsuzaki, K
- Date Issued
- 2011-09-15
- Publisher
- ELSEVIER SCIENCE SA
- Abstract
- The tensile properties of carbon-containing twinning induced plasticity (TWIP) steels and their temperature dependence were investigated. Two steels with carbon concentrations of 0.6% and 0.8% (w/w) were tensile-tested at 173, 223, 273, 294, and 373 K. Three deformation modes were observed during tensile testing: epsilon-martensitic transformation, deformation twinning, and dynamic strain aging. The characteristic deformation mode that contributed to the work hardening rates changed with the deformation temperature and chemical compositions. The work hardening rate in the carbon-containing TWIP steels increased according to the deformation modes in the following order: epsilon-martensitic transformation > deformation twinning > dynamic strain aging. (C) 2011 Elsevier B.V. All rights reserved.
- Keywords
- epsilon-Martensitic transformation; Twinning induced plasticity; Dynamic strain aging; Work hardening rate; Stacking fault energy; STACKING-FAULT ENERGY; FE-MN-C; HADFIELD MANGANESE STEEL; MECHANICAL-PROPERTIES; AUSTENITIC STEEL; SERRATED FLOW; ALLOYS; BEHAVIOR; SI; SYSTEM
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/17086
- DOI
- 10.1016/J.MSEA.2011.06.011
- ISSN
- 0921-5093
- Article Type
- Article
- Citation
- MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, vol. 528, no. 24, page. 7310 - 7316, 2011-09-15
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