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In situ observation of strain and phase transformation in plastically deformed 301 austenitic stainless steel / Thomas, Simm; Karen, Perkins

Materials & Design, Volume: 112, Pages: 107 - 116

Swansesa University Authors: Thomas, Simm, Karen, Perkins

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Abstract

To inform the design of superior transformation-induced plasticity (TRIP) steels, it is important to understand what happens at the microstructural length scales. In this study, strain-induced martensitic transformation is studied by in situ digital image correlation (DIC) in a scanning electron mic...

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Published in: Materials & Design
ISSN: 0264-1275
Published: Elsevier BV 2016
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa30098
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Abstract: To inform the design of superior transformation-induced plasticity (TRIP) steels, it is important to understand what happens at the microstructural length scales. In this study, strain-induced martensitic transformation is studied by in situ digital image correlation (DIC) in a scanning electron microscope. Digital image correlation at submicron length scales enables mapping of transformation strains with high confidence. These are correlated with electron backscatter diffraction (EBSD) prior to and post the deformation process to get a comprehensive understanding of the strain-induced transformation mechanism. The results are compared with mathematical models for enhanced prediction of strain-induced martensitic phase transformation.
Keywords: TRIP steel, DIC, EBSD, Martensite, SEM, MTEX
College: College of Engineering
Start Page: 107
End Page: 116