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

Celada-Casero, Carola; Kooiker, Harm; Groen, Manso; Post, Jan; San Martin, David

doi:10.3390/met7070271

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

Title

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

Author

Celada-Casero, Carola (TU Delft (OLD) MSE-3; Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC))
Kooiker, Harm (Philips Advanced Technology Centre; University of Twente)
Groen, Manso (Philips Advanced Technology Centre)
Post, Jan (Philips Advanced Technology Centre; Rijksuniversiteit Groningen)
San Martin, David (Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC))

Date

2017

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.

Subject

Inductive measurements
Metastable austenite
Stainless steel
Strain-induced martensite
Transformation kinetics

To reference this document use:

http://resolver.tudelft.nl/uuid:e2d8716a-9afd-4551-a68c-f7e8fdf2c9b5

DOI

https://doi.org/10.3390/met7070271

ISSN

2075-4701

Source

Metals, 7 (7)

Part of collection

Institutional Repository