Magnetic study of the martensitic transformation in a Fe–Pd alloy

Abstract In this work, the martenstic transformation (MT) path from the austenite phase has been analyzed in a Fe 70 Pd 30 polycrystalline alloy by calorimetric and magnetic measurements. Besides, the magnetocaloric effect (MCE) in the vicinity of the MT has been estimated from magnetization measurements. The alloy undergoes a reversible MT from the austenite to the martensite at 290 K. A second irreversible MT is detected at 216 K. In spite of the low values, the MCE is employed in the analysis of the magnetoelastic coupling responsible of the characteristic magnetostrictive effect in these ferromagnetic shape memory alloys (FSMA).