立方晶体结构高熵合金在低温条件下的力学行为研究进展

In recent years, the researches on the mechanical behavior of high-entropy alloys with cubic structure at cryogenic temperature (77 K) have become a hot topic. It is found that stacking fault energy (SFE) of some cubic high-entropy alloys decreases with the decrease of temperature. Compared with those at room temperature, the mechanical properties of these alloys at cryogenic temperature show remarkable increase, suggesting their tremendous potential as promising structural materials used at cryogenic-temperature. In this paper, recent progress on the mechanical behavior of high-entropy alloys with cubic structure at cryogenic temperature are reviewed, focusing on the underlying mechanisms of strengthening and toughening during plastic deformation. At last, the possible future development trend is also given.