Unravelling the structural and chemical features influencing deformation-induced martensitic transformations in steels

Journal article (2014)

Authors

G.K. Tirumalasetty QN/High Resolution Electron Microscopy
M.A. van Huis QN/High Resolution Electron Microscopy
C Kwakernaak External organisation
J. Sietsma OLD Metals Processing, Microstructures and Properties
W.G. Sloof OLD Surface and Interface Engineering
H.W. Zandbergen QN/High Resolution Electron Microscopy
Research Group
QN/High Resolution Electron Microscopy
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Published Date

2014

Language

English

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Research Group

QN/High Resolution Electron Microscopy

Abstract

A combination of electron backscattered diffraction and high-sensitivity electron probe microanalysis was used to correlate the changes in microstructural features upon deformation with local chemical composition in transformation-induced plasticity steels. A novel cleaning procedure was developed that allows complete monitoring of transformation and deformation processes in relation to the local crystal structure, microstructure and chemical composition. Here we show direct evidence that local variations in manganese content enable a gradual transformation of the retained austenite grains.