| publication name | Effect of high magnetic field on the phase transition in Fe-24%Ga and Fe-27%Ga during isothermal annealing |
|---|---|
| Authors | V.A. Milyutin, I.V. Gervasyeva, D.A. Shishkin, Yu.N. Gornostyrev, E. Beaugnon, I.A. Bobrikov, A.M. Balagurov, A.K. Mohamed, I.S. Golovin |
| year | 2020 |
| keywords | Phase transitions;Fe-Ga alloys;High magnetic field;Neutron diffraction;Metastable state |
| journal | Journal of magnetism and magnetic materials |
| volume | 514 |
| issue | Not Available |
| pages | 167284 |
| publisher | Elsevier BV |
| Local/International | International |
| Paper Link | https://doi.org/10.1016/j.jmmm.2020.167284 |
| Full paper | download |
| Supplementary materials | Not Available |
Abstract
The effect of a high magnetic field (25 T) on the D03 to L12 phase transformation in two Fe-Ga alloys with 24 and 27 at.% Ga during isothermal annealing at 475 °C is investigated using neutron diffraction and magnetization measurements techniques. It is proved that annealing in the magnetic field increases the amount of fcc – derived L12 phase in both samples. This effect is stronger in the Fe-27%Ga alloy as compared with the Fe-24%Ga alloy. The reasons for enhancing the D03 to L12 phase transition in the magnetic field are discussed. We suggest that the most significant increase in the transformation rate is related to a decrease in the energy barrier between the phases involved in the transformation process.