Cryogenic High Entropy Alloy

摘要

The present invention through a thermodynamic calculation above 700 ℃ set the alloy composition region having a fine structure of the FCC phase, and by making it have a microstructure of the FCC phase at room temperature and extremely low temperature, especially low-temperature tensile strength and elongation are superior high entropy It relates to the alloy. High entropy alloys Co according to the invention: 3 to 12 atom%, Cr: 3 to 18 atom%, Fe: 3 to 50 atom%, Mn: 3 to 20 atom%, Ni: 17 ~ 45 atom%, V: including 3-12 at%, and unavoidable impurities, wherein the ratio (V / Ni) of the V content to the Ni content is more than 0.5, the sum of the V content and the Co content is characterized in that not more than 22 at%.;