相和结构状态对Fe-Co-Ni-Cr系钼合金化非等原子高熵合金低温弹性能的影响
The influence of the phase and structural state on the low-temperature elastic properties of molybdenum-alloyed non-equiatomic high-entropy alloys of the Fe-Co-Ni-Cr system
AI总结：
该研究探究Fe-Co-Ni-Cr系含钼中熵合金的低温力学性能与微观结构，发现低温塑性变形引发马氏体相变且动态弹性模量与相变程度相关，涉及低至0.5 K的极低温区间。
摘要：
研究了中熵合金Co₁₇.₅Cr₁₂.₅Fe₅₅Ni₁₀Mo₅（原子百分比）在低温区间（含低至0.5 K的创纪录低温区）的力学性能与微观结构演化。已证实低温塑性变形会在该合金中引发马氏体相变，且动态弹性模量值与相变程度相关。
英文摘要：
The mechanical properties and microstructural evolution of a medium-entropy alloy Co$_{17.5}$Cr$_{12.5}$Fe$_{55}$Ni$_{10}$Mo$_{5}$ (at%) in a low temperature range (including the record low temperatures region down to 0.5 K) were investigated. It has been established that low-temperature plastic deformation initiates martensitic phase transformations in this alloy, and the values of the dynamic modulus of elasticity correlate with the degree of phase transformations.
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