The effect of ternary additions on the structural and mechanical properties of B2 phase FeCo magnetic alloy

Abstract

AbstractFeCo alloy constitutes an important class of soft-magnetic materials with a wide range of technological applications. This class of materials offers exceptional magnetic properties due to their rare combination of good properties like high mechanical strength, and high saturation magnetization. Fortunately, this alloy has good magnetic properties, but shows low levels of ductility at room temperature. This study intends to use density functional theory (DFT), to understand how ternary alloying with Pd and Mn can improve the ductility of B2 FeCo system. We probe the relationship between stability and composition of the ternary Fe50Co50−xMx (M = Pd, Mn) with different M content. Furthermore, the study also investigates how ternary alloying affects the stability of the B2 FeCo alloy. There is a significant enhancement of ductility with Mn addition than Pd ternary addition. It is noteworthy that small composition of Pd (< 10 at.%) does not compromise the valuable properties of FeCo. The findings suggest that Fe50Co50−xMx alloys can be used for the future development of magnetic components with good strength. Graphical abstract The effect of ternary additions on the structural and mechanical properties of B2 phase FeCo magnetic alloy.