Mechanical Stability and Deformation-Induced Transformation of Retained Austenite in TRIP Steels at Low Temperatures

Takayuki Yamashita; Norimitsu Koga; Osamu Umezawa

doi:10.4028/www.scientific.net/KEM.741.36

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 741Mechanical Stability and Deformation-Induced...

Mechanical Stability and Deformation-Induced Transformation of Retained Austenite in TRIP Steels at Low Temperatures

Abstract:

The tensile properties and the stability of retained austenite in TRIP steels with different volume fraction of retained austenite have been studied at low temperature. The steels showed a good valance of strength and ductility at 193 K. Their work-hardening rates were decreased linearly and kept a high value in the high strain regime at 193 K. The retained austenite was mostly transformed into martensite less than 10% strain at 193 K.

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Periodical:

Key Engineering Materials (Volume 741)

Pages:

36-41

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.741.36

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Online since:

June 2017

Authors:

Takayuki Yamashita*, Norimitsu Koga, Osamu Umezawa

Keywords:

High Strength Steel, Mechanical Stability, Retained Austenite, Transformation Induced Plasticity

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