Elastic moduli and thermal expansion coefficients of medium-entropy subsystems of the CrMnFeCoNi high-entropy alloy
作者:G. Laplanche、P. Gadaud、C. Bärsch、K. Demtröder、C. Reinhart、J. Schreuer、E.P. George
DOI:10.1016/j.jallcom.2018.02.251
日期:2018.5
Abstract Elastic moduli of a set of equiatomic alloys (CrFeCoNi, CrCoNi, CrFeNi, FeCoNi, MnCoNi, MnFeNi, and CoNi), which are medium-entropy subsystems of the CrMnFeCoNi high-entropy alloy were determined as a function of temperature over the range 293 K–1000 K. Thermal expansion coefficients were determined for these alloys over the temperature range 100 K–673 K. All alloys were single-phase and had the
摘要 作为 CrMnFeCoNi 高熵合金的中熵子系统的一组等原子合金(CrFeCoNi、CrCoNi、CrFeNi、FeCoNi、MnCoNi、MnFeNi 和 CoNi)的弹性模量被确定为 293 范围内温度的函数K–1000 K。在 100 K–673 K 的温度范围内确定了这些合金的热膨胀系数。所有合金都是单相的,具有面心立方 (FCC) 晶体结构,除了两相的 CrFeNi在 FCC 基体中含有少量体心立方 (BCC) 析出物的合金。此处获得的热膨胀系数和弹性模量的温度依赖性对于量化基本方面(如固溶强化)和结构分析/设计非常有用。使用上述结果,