Observation of deformation twinning and martensitic transformation during nanoindentation of a transformation-induced plasticity steel

Zhiping Xiong; Gilberto Casillas; Ahmed A. Saleh; Shaogang Cui; Elena V. Pereloma

doi:10.1038/s41598-017-17824-x

Observation of deformation twinning and martensitic transformation during nanoindentation of a transformation-induced plasticity steel

Zhiping Xiong^*, Gilberto Casillas, Ahmed A. Saleh, Shaogang Cui, Elena V. Pereloma

^*Corresponding author for this work

University of Wollongong

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

For the first time, deformation twinning and martensitic transformation were observed in retained austenite in a low-Alloyed transformation-induced plasticity steel using nanoindentation in conjunction with electron backscattering diffraction and transmission electron microscopy. Dislocation glide, martensite formation and deformation twinning were correlated to pop-ins and deviation from linearity in the load-displacement curve. Deformation twinning was found to enhance the stability of retained austenite. This observation furthers our understanding of RA stability during straining of low-Alloyed multiphase TRIP steel.

Original language	English
Article number	17397
Journal	Scientific Reports
Volume	7
Issue number	1
DOIs	https://doi.org/10.1038/s41598-017-17824-x
Publication status	Published - 1 Dec 2017
Externally published	Yes

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abstract = "For the first time, deformation twinning and martensitic transformation were observed in retained austenite in a low-Alloyed transformation-induced plasticity steel using nanoindentation in conjunction with electron backscattering diffraction and transmission electron microscopy. Dislocation glide, martensite formation and deformation twinning were correlated to pop-ins and deviation from linearity in the load-displacement curve. Deformation twinning was found to enhance the stability of retained austenite. This observation furthers our understanding of RA stability during straining of low-Alloyed multiphase TRIP steel.",

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AU - Casillas, Gilberto

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AU - Cui, Shaogang

AU - Pereloma, Elena V.

PY - 2017/12/1

Y1 - 2017/12/1

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AB - For the first time, deformation twinning and martensitic transformation were observed in retained austenite in a low-Alloyed transformation-induced plasticity steel using nanoindentation in conjunction with electron backscattering diffraction and transmission electron microscopy. Dislocation glide, martensite formation and deformation twinning were correlated to pop-ins and deviation from linearity in the load-displacement curve. Deformation twinning was found to enhance the stability of retained austenite. This observation furthers our understanding of RA stability during straining of low-Alloyed multiphase TRIP steel.

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Observation of deformation twinning and martensitic transformation during nanoindentation of a transformation-induced plasticity steel

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