Effects of heat treatments on magneto-structural phase transitions in MnNiSi-FeCoGe alloys
JH Chen, TP Chhetri, AU Saleheen, DP Young… - Intermetallics, 2019 - Elsevier
A first-order magneto-structural transition from a ferromagnetic orthorhombic TiNiSi-type
martensite phase to a paramagnetic hexagonal Ni 2 In-type austenite phase was observed
in (MnNiSi) 0.62 (FeCoGe) 0.38. In this work, we demonstrate that the first-order magneto-
structural transition temperature for a given composition is tunable over a wide temperature
range through heat treatment and hydrostatic pressure application. The first-order transition
temperature decreased by over 150 K as the annealing/quenching temperature went from …
martensite phase to a paramagnetic hexagonal Ni 2 In-type austenite phase was observed
in (MnNiSi) 0.62 (FeCoGe) 0.38. In this work, we demonstrate that the first-order magneto-
structural transition temperature for a given composition is tunable over a wide temperature
range through heat treatment and hydrostatic pressure application. The first-order transition
temperature decreased by over 150 K as the annealing/quenching temperature went from …
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