MATEC Web of Conferences
Volume 33, 2015ESOMAT 2015 – 10th European Symposium on Martensitic Transformations
|Number of page(s)||10|
|Published online||07 December 2015|
Thermodynamics and Kinetics of Martensitic Transformation in Ni-Mn-based Magnetic Shape Memory Alloys
1 Department of Materials Science, Tohoku University, Sendai 980-8579, Japan
2 Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
3 Department of Materials and Environmental Engineering, Sendai National College of Technology, Natori 981-1239, Japan
4 International MegaGauss Science Laboratory, Institute for Solid State Physics, The University of Tokyo, Kashiwa 277-8581, Japan
5 Research Institute for Engineering and Technology, Tohoku Gakuin University, Tagajo 985-8537, Japan
a Corresponding author’s e-mail: email@example.com
We herein present a review of recent thermodynamic and kinetic studies on Ni-Mn-based magnetic shape memory alloys along with some new data supporting the kinetic discussion. Magnetic phase diagrams and Clausius-Clapeyron relationships are mainly discussed for Ni-Mn-Ga and Ni-Mn-In systems. For the kinetics, a phenomenological model based on Seeger’s model is used to describe the temperature dependence of magnetic field hysteresis, as well as the change of hysteresis under different sweeping rates of magnetic fields.
© Owned by the authors, published by EDP Sciences, 2015
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