Abstract
An inductive sensor developed by Philips ATC has been used to study in-situ the austenite (gamma) to martensite (alpha') 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 alpha'-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.
Original language | English |
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Article number | 271 |
Number of pages | 15 |
Journal | JOM |
Volume | 7 |
Issue number | 7 |
DOIs | |
Publication status | Published - Jul-2017 |
Keywords
- stainless steel
- metastable austenite
- strain-induced martensite
- transformation kinetics
- inductive measurements
- X-RAY
- DEFORMATION
- BEHAVIOR
- STATE