Fe55Co17.5Ni10Cr12.5Mo5 High-Entropy Alloy with Outstanding Cryogenic Mechanical Properties Driven by Deformation-Induced Phase Transformation Behavior

Compositive role of refractory element Mo in improving strength and ductility of face-centered-cubic complex concentrated alloys

“…Moreover, most studies on the origins of solid-solution and grain-boundary strengthening have only investigated FCC CCAs composed of 3d-transition metal elements. Although other elements with large atomic size differences, such as Al and Mo were added, they contributed to improving the mechanical properties through the formation of various secondary ordered or intermetallic phases [23][24][25][26][27]. In particular, it was suggested that the utilization of a small amount of Mo is an effective strategy to enhance the strength-ductility combination of FCC CCAs by regulating the precipitation behaviors [28,29] or deformation mechanisms.…”