Structural stability of mechanically alloyed amorphous (FeCoNi)70Ti10B20 under high-temperature and high-pressure

Nanostructured (FeCoNi)70Ti10B20 (at%) alloy was synthesized by mechanical alloying from elemental powder mixture of Fe, Co, Ni, Ti and B using ball milling. The effect milling time on the evolution structure morphology investigated X-ray diffraction, scanning transmission electron microscopy differential thermal analysis. It observed that formation solid solution started very onset process. Crystallite size lattice strains seemed to be leveled off after 20 h with no further major changes. process for longer periods introduced severe plastic deformations causing amorphous phase (FeCoNi)70Ti10B20. composition confirmed energy dispersive spectroscopy analysis showed an excellent homogeneity elements. stability mechanically alloyed sample verified employing high-temperature high-pressure studies. samples heat-treated at 700 °C revealed crystallization phase. However, synchrotron-based ambient temperature diffraction studies remained stable up pressure 30 GPa. 50 milled being annealed 350 improvement in soft magnetic properties alloy, which due probable elimination residual stress powders.