Abstract Molecular dynamics simulations are performed to study mechanical characteristics and homogeneous plastic inception of CoCrCuFeNi high-entropy alloy at various temperatures under uniaxial tension. It is found that the elastic modulus and ultimate tensile strength increase with temperature decreasing. A notable softening effect is observed at the elastic deformation stage caused by the decrease of the interatomic force gradient. Extrinsic stacking faults and deformation twins are extensively observed, which are formed via intrinsic stacking faults overlap.

中文翻译：

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CoCrCuFeNi高熵合金力学性能和塑性起始温度依赖性的分子动力学研究

摘要 通过分子动力学模拟研究了CoCrCuFeNi高熵合金在单轴拉伸下不同温度下的力学特性和均质塑性起始。发现弹性模量和极限拉伸强度随着温度的降低而增加。在由原子间力梯度减小引起的弹性变形阶段观察到显着的软化效应。外在堆垛层错和变形孪晶被广泛观察到，它们是通过内在堆垛层错重叠形成的。