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Effect of thermomechanical processing on the microstructure and retained austenite stability during in situ tensile testing using synchrotron X-Ray diffraction of NbMoAl TRIP steel

Pereloma, Elena, Zhang, Laichang, Liss, Klaus-Dieter, Garbe, Ulf, Almer, Jonathan, Schambron, Thomas, Beladi, Hossein and Timokhina, Ilana 2011, Effect of thermomechanical processing on the microstructure and retained austenite stability during in situ tensile testing using synchrotron X-Ray diffraction of NbMoAl TRIP steel, Solid state phenomena, vol. 172-174, pp. 741-746.

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Title Effect of thermomechanical processing on the microstructure and retained austenite stability during in situ tensile testing using synchrotron X-Ray diffraction of NbMoAl TRIP steel
Author(s) Pereloma, Elena
Zhang, Laichang
Liss, Klaus-Dieter
Garbe, Ulf
Almer, Jonathan
Schambron, Thomas
Beladi, Hossein
Timokhina, Ilana
Journal name Solid state phenomena
Volume number 172-174
Start page 741
End page 746
Publisher Scitec Publications
Place of publication Zürich, Switzerland
Publication date 2011
ISSN 1012-0394
Keyword(s) Synchrotron diffraction in-situ tensile test retained austenite stability high energy X-rays
Transformation-induced plasticity steel
Summary In this work we compare and contrast the stability of retained austenite during tensile testing of Nb-Mo-Al transformation-induced plasticity steel subjected to different thermomechanical processing schedules. The obtained microstructures were characterised using optical metallography, transmission electron microscopy and X-ray diffraction. The transformation of retained austenite to martensite under tensile loading was observed by in-situ high energy X-ray diffraction at 1ID / APS. It has been shown that the variations in the microstructure of the steel, such as volume fractions of present phases, their morphology and dimensions, play a critical role in the strain-induced transition of retained austenite to martensite.
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 861103 Basic Iron and Steel Products
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2011, Trans Tech Publications
Persistent URL http://hdl.handle.net/10536/DRO/DU:30044354

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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