Determination of Local Stress Within Twins
in a Twinning Induced Plasticity Steel
Volume 2 - Issue 4
Bouaziz O*
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- Laboratoire d’Etude des Microstructures et de Mécanique des Matériaux (LEM3), CNRS, Université de Lorraine, Arts et Métier Paris Tech,
France
*Corresponding author:
Bouaziz O, Laboratoire d’Etude des Microstructures et de Mécanique des Matériaux (LEM3), CNRS, Université
de Lorraine, Arts et Métier Paris Tech, France
Received: February 06, 2020; Published: February 19, 2020
DOI: 10.32474/MAMS.2020.02.000141
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Abstract
Thanks to the measurements of the Bauschinger effect and the twin volume fraction, the local stress within twins in Twinning
Induced Plasticity (TWIP) steels has been experimentally determined. It is found that this local stress rapidly increases as a function
of plastic strain to levels higher than 2GPa and can be probably higher than 3GPa for strains larger than 0.2. Mechanisms suitable to
explain this order of magnitude are briefly discussed.
Keywords: TWIP, twin; Stress; Strain-hardening
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