On the work-hardening behaviour of a high manganese TWIP steel at different deformation temperatures

Shterner, Vadim, Timokhina, Ilana B. and Beladi, Hossein 2016, On the work-hardening behaviour of a high manganese TWIP steel at different deformation temperatures, Materials science & engineering A, vol. 669, pp. 437-446, doi: 10.1016/j.msea.2016.05.104.

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Title On the work-hardening behaviour of a high manganese TWIP steel at different deformation temperatures
Author(s) Shterner, Vadim
Timokhina, Ilana B.ORCID iD for Timokhina, Ilana B. orcid.org/0000-0003-1989-0835
Beladi, HosseinORCID iD for Beladi, Hossein orcid.org/0000-0003-0131-707X
Journal name Materials science & engineering A
Volume number 669
Start page 437
End page 446
Total pages 10
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-07-04
ISSN 0921-5093
Keyword(s) work-hardening behaviour
mechanical twinning
TWIP steel
stacking faults
dynamic strain aging
Summary In the current study, the work-hardening behaviour of a high manganese TWIP steel was investigated at different deformation temperatures. At room temperature, the steel exhibited an excellent combination of mechanical properties due to a unique work-hardening behaviour. There were four distinct stages observed in the work-hardening behaviour as a result of complex dynamic strain induced microstructural reactions consisted of dynamic recovery, dislocation dissociation, stacking fault formation, mechanical twining and dynamic strain aging. An increase in the deformation temperature significantly influenced the microstructure evolution, resulting in a remarkable alteration in the work-hardening behaviour. Consequently, the mechanical properties of the TWIP steel were gradually deteriorated with the deformation temperature. The mechanical twins appeared to have a restricted influence on the work-hardening behaviour of the TWIP steel at room temperature and remarkably diminished with the temperature. The enhanced work-hardening behaviour was mostly attributed to the interaction of glide dislocations with stacking faults.
Language eng
DOI 10.1016/j.msea.2016.05.104
Field of Research 091207 Metals and Alloy Materials
0912 Materials Engineering
0913 Mechanical Engineering
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30085694

Document type: Journal Article
Collections: Institute for Frontier Materials
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