Paper Title:

An Interpretation on Kinetics of Martensitic Transformation

Periodical Solid State Phenomena (Volumes 172 - 174)
Main Theme Solid-Solid Phase Transformations in Inorganic Materials
Edited by Yves Bréchet, Emmanuel Clouet, Alexis Deschamps, Alphonse Finel and Frédéric Soisson
Pages 90-98
DOI 10.4028/www.scientific.net/SSP.172-174.90
Citation Tomoyuki Kakeshita et al., 2011, Solid State Phenomena, 172-174, 90
Online since June, 2011
Authors Tomoyuki Kakeshita, Takashi Fukuda, Yong-Hee Lee
Keywords Athermal Transformation, Incubation Time, Isothermal Transformation
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Abstract

We have investigated athermal and isothermal martensitic transformations (typical displacive transformations) in Fe–Ni, Fe–Ni–Cr, and Ni-Co-Mn-In alloys under magnetic fields and hydrostatic pressures in order to understand the time-dependent nature of martensitic transformation, that is, the kinetics of martensitic transformation. We have confirmed that the two transformation processes are closely related to each other, that is, the athermal process changes to the isothermal process and the isothermal process changes to the athermal one under a hydrostatic pressure or a magnetic field. These findings can be explained by the phenomenological theory, which gives a unified explanation for the two transformation processes previously proposed by our group.