Retained austenite: transformation-induced plasticity

Pereloma, Elena, Gazder, Azdiar and Timokhina, Ilana 2016, Retained austenite: transformation-induced plasticity. In Colás, Rafael and Totte, George E. (ed), Encyclopedia of iron, steel, and their alloys, Taylor and Francis, New York. N.Y., pp.3088-3103, doi: 10.1081/E-EISA-120049200.

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Title Retained austenite: transformation-induced plasticity
Author(s) Pereloma, Elena
Gazder, Azdiar
Timokhina, IlanaORCID iD for Timokhina, Ilana
Title of book Encyclopedia of iron, steel, and their alloys
Editor(s) Colás, Rafael
Totte, George E.
Publication date 2016
Series Metals and alloys encyclopedia collection
Start page 3088
End page 3103
Total pages 16
Publisher Taylor and Francis
Place of Publication New York. N.Y.
Keyword(s) high strength steels
retained austenite
Summary The deformation-induced phase transformation of metastable austenite to martensite is accompanied by macroscopic plastic strain and results in significant work hardening and the delayed onset of necking. Steels that exhibit such transformation-induced plasticity (TRIP) effect possess high strength–ductility ratios and improved toughness. Since the stability of the retained austenite (RA) phase is the rate controlling mechanism for the TRIP effect, the factors affecting the chemical and mechanical stability of RA in CMnSi TRIP steels are discussed. It was suggested that chemical stability plays a more important role at low strains, whereas other factors become responsible for RA behavior at higher strains. The importance of optimizing the processing parameters to achieve the desirable level of austenite stability is highlighted. Finally, the influence of mechanical testing conditions and the interaction between the phases during tensile testing are also detailed.
ISBN 9781466511040
Language eng
DOI 10.1081/E-EISA-120049200
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category B1 Book chapter
ERA Research output type B Book chapter
Copyright notice ©2015, Taylor & Francis.
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