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Dependence of deformation behavior on grain size and strain rate in an ultrahigh strength-ductile Mn-based TRIP alloy

Cai, M.J., Zhu, W.J., Stanford, N., Pan, L.B., Chao, Q. and Hodgson, P.D. 2016, Dependence of deformation behavior on grain size and strain rate in an ultrahigh strength-ductile Mn-based TRIP alloy, Materials science and engineering A, vol. 653, pp. 35-42, doi: 10.1016/j.msea.2015.11.103.

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Title Dependence of deformation behavior on grain size and strain rate in an ultrahigh strength-ductile Mn-based TRIP alloy
Author(s) Cai, M.J.
Zhu, W.J.
Stanford, N.
Pan, L.B.
Chao, Q.
Hodgson, P.D.
Journal name Materials science and engineering A
Volume number 653
Start page 35
End page 42
Total pages 8
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-01-20
ISSN 0921-5093
1873-4936
Keyword(s) TRIP steel
strain rate
grain size
Summary A novel ultra-high strength TRIP (transformation induced plasticity) steel, with ~1.5. GPa strength and good ductility of ~26% has been produced. The microstructure consists of ultrafine ferrite, and a large volume fraction of austenite. The flow stress was significantly increased by a reduction in the grain size, but the effect of strain rate on the flow stress was negligible. The formation of stress induced martensite was found to increase linearly with strain, and a reduction in the grain size correlated with an increase in the stress required to form the martensite.
Language eng
DOI 10.1016/j.msea.2015.11.103
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 ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30083945

Document type: Journal Article
Collection: Institute for Frontier Materials
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