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Published in: Journal of Materials Engineering and Performance 7/2014

01-07-2014

Reversible Characteristics and Cycling Effects of the ε ↔ γ Martensitic Transformations in Fe-Mn-Cr Twip/Trip Steels

Authors: V. Mertinger, M. Benke, E. Nagy, T. Pataki

Published in: Journal of Materials Engineering and Performance | Issue 7/2014

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Abstract

The variation of thermal characteristics of the ε ↔ γ transformation during thermal cycling and the effect of Cr content was studied in two Fe-Mn-Cr steels through cyclic DSC examinations. It was found that the martensite start temperature decreased and the austenite start temperature increased in the first cycles, then both stabilized after several cycles. The latent heat of the transformations increased first and then also stabilized. The Cr content pushed the ε ↔ γ transformations to lower temperatures, decreased the thermal hysteresis and the latent heat. It is experimentally shown that 6.53 m/m% Cr content increases the stacking fault energy in this alloy.

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Metadata
Title
Reversible Characteristics and Cycling Effects of the ε ↔ γ Martensitic Transformations in Fe-Mn-Cr Twip/Trip Steels
Authors
V. Mertinger
M. Benke
E. Nagy
T. Pataki
Publication date
01-07-2014
Publisher
Springer US
Published in
Journal of Materials Engineering and Performance / Issue 7/2014
Print ISSN: 1059-9495
Electronic ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-014-1025-5

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