Thermo-mechanical processing of TRIP-aided steels

Ranjan, Ravi, Beladi, Hossein, Singh, Shiv Brat and Hodgson, Peter D. 2015, Thermo-mechanical processing of TRIP-aided steels, Metallurgical and materials transactions a: physical metallurgy and materials science, vol. 46, no. 7, pp. 3232-3247, doi: 10.1007/s11661-015-2885-5.

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Title Thermo-mechanical processing of TRIP-aided steels
Author(s) Ranjan, Ravi
Beladi, HosseinORCID iD for Beladi, Hossein
Singh, Shiv Brat
Hodgson, Peter D.
Journal name Metallurgical and materials transactions a: physical metallurgy and materials science
Volume number 46
Issue number 7
Start page 3232
End page 3247
Total pages 16
Publisher Springer
Place of publication New York, N.Y.
Publication date 2015
ISSN 1073-5623
Summary The effects of the partial replacement of Si with Al and the addition of P on the microstructure and mechanical properties of experimental TRIP-aided steels subjected to different thermo-mechanical cycles were studied. Based on the available literature and thermodynamics-based calculations, three steels with different compositions were designed to obtain optimum results from a relatively low number of experiments. Different combinations of microstructure were developed through three different kinds of thermo-mechanical-controlled processing (TMCP) routes, and the corresponding tensile properties were evaluated. The results indicated that partial replacement of Si with Al improved the strength-ductility balance along with providing an improved variation in the incremental change in the strain-hardening exponent. However, the impact of the P addition was found to depend more on the final microstructure obtained by the different TMCP cycles. It has also been shown that an increase in the volume fraction of the retained austenite ($$ V_{{\gamma_{\text{ret}} }} $$Vγret) or its carbon content ($$ C_{{\gamma_{\text{ret}} }} $$Cγret) resulted in an improved strength-ductility balance, which can be attributed to better exploitation of the TRIP effect.
Language eng
DOI 10.1007/s11661-015-2885-5
Field of Research 091299 Materials Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2015, Springer Verlag
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Document type: Journal Article
Collection: Institute for Frontier Materials
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