In-situ investigation of strain-induced martensitic transformation kinetics in an austenitic stainless steel by inductive measurements

Journal article (2017)

Authors

Carola Celada-Casero Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC), (OLD) MSE-3
Harm Kooiker Philips Advanced Technology Centre, University of Twente
Manso Groen Philips Advanced Technology Centre
J Post Rijksuniversiteit Groningen, Philips Advanced Technology Centre
D San Martin Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC)
Research Group
(OLD) MSE-3
Copyright: © 2017 Carola Celada-Casero, Harm Kooiker, Manso Groen, Jan Post, David San Martin
DOI: https://doi.org/10.3390/met7070271
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Published Date

2017

Language

English

Research Group

(OLD) MSE-3

Abstract

An inductive sensor developed by Philips ATC has been used to study in-situ the austenite (γ) to martensite (α′) phase transformation kinetics during tensile testing in an AISI 301 austenitic stainless steel. A correlation between the sensor output signal and the volume fraction of α′-martensite has been found by comparing the results to the ex-situ characterization by magnetization measurements, light optical microscopy, and X-ray diffraction. The sensor has allowed for the observation of the stepwise transformation behavior, a not-well-understood phenomena that takes place in large regions of the bulk material and that so far had only been observed by synchrotron X-ray diffraction.