Tensile properties of low-stacking fault energy high-entropy alloys

Effect of carbon content and annealing on structure and hardness of the CoCrFeNiMn-based high entropy alloys

“…Moreover, the alloy has exceptional fracture toughness at cryogenic temperatures [23]. Overall, the mechanical behavior of the CoCrFeNiMn alloy shows a lot of similarity with that of austenitic steels, namely TWIP-steels [24,25]. Carbon is a primal interstitial alloying element of steels, which has a substantial effect on phase composition and properties.…”

Phase separation of metastable CoCrFeNi high entropy alloy at intermediate temperatures

“…2 [15], and consequently many researchers treated it as a base alloy. In history, the gradually developed single based alloys have greatly enhanced the civilization, such as the alloys of copper, iron, aluminum and nickel.…”

A second criterion for sigma phase formation in high-entropy alloys

“…[19] The sigma phase is also known to reduce the tensile ductility of HEAs. [20,21] However, the sigma phase can bring advantages in some cases. For example, alloys with high fractions of the sigma phase are known to be very resistant to thermal softening.…”