Abstract
This study investigates the microstructural characteristics and magnetic properties of the as-cast Fe-Co-14V alloy. Ingots of the Fe-Co-14V alloy were produced using vacuum arc remelting (VAR), and their microstructure was examined through optical microscopy (OM), field-emission scanning electron microscopy (FE-SEM) equipped with energy dispersive X-ray spectroscopy (EDS), and X-ray diffraction (XRD). The magnetic properties were assessed using vibrating sample magnetometry (VSM). The OM and FE-SEM micrographs and XRD patterns revealed that the room temperature microstructure of the as-cast Fe-Co-14V alloy is predominantly comprised of a vanadium-supersaturated austenite phase. Magnetic studies indicated that an increase in vanadium content leads to a decrease in saturation magnetization (Ms), accompanied by an increase in coercivity (Hc). The decrement in Ms is attributed to the presence of the paramagnetic austenite phase, while Hc is significantly influenced by the ability to rotate the wall of the magnetic domains.
Go to article