Influence of Biaxial Magnetic Field on Martensite Reorientation in Magnetic Shape Memory Alloy
Based on thermodynamics, a constitutive model for magnetic shape memory alloy (MSMA) is developed under biaxial magnetic field. Considering the driving force provided by Gibbs free energy and resistive force during martensite reorientation, a kinetic equation is got. Of special concern is the influence of biaxial magnetic field on martensite reorientation for a Ni2MnGa single-crystal specimen. The theoretical results are in agreement with experimental data. Some useful conclusions can be obtained.
Y. P. Zhu "Influence of Biaxial Magnetic Field on Martensite Reorientation in Magnetic Shape Memory Alloy", Advanced Materials Research, Vols. 261-263, pp. 697-701, 2011