Fig. 1. Effect of Al contents on valence electron concentration, formation enthalpy and structure of Al_xCrFeNiTi alloys. When x = 0, 0.5, 1, 2, 3, 4, the atomic percentages corresponding to Al content are 0, 11.11 at.%, 20 at.%, 33.33 at.%, 42.86 at.%, 50 at.% respectively. Al含量对Al_xCrFeNiTi系合金的VEC、形成焓和结构的影响, 其中当x = 0, 0.5, 1, 2, 3, 4时, 分别对应Al含量的原子百分比为0, 11.11 at.%, 20 at.%, 33.33 at.%, 42.86 at.%, 50 at.%

Fig. 2. Effect of Al contents on lattice constant and atomic size difference of Al_xCrFeNiTi alloys. Al含量对Al_xCrFeNiTi系合金的晶格常数和原子尺寸差异的影响

Fig. 3. Density of states (DOS) of CrFeNiTi, Al₂CrFeNiTi and Al₄CrFeNiTi alloys. CrFeNiTi, Al₂CrFeNiTi和Al₄CrFeNiTi合金的总态密度

Fig. 4. Charge distribution of Al_xCrFeNiTi alloys: (a) Electron density difference map on (110) plane for Al₂CrFeNiTi; (b) the atomic Mulliken population of Al_xCrFeNiTi alloys. Al_xCrFeNiTi系合金的电荷分布　(a) Al₂CrFeNiTi在(110)面的差分电荷密度; (b) Al_xCrFeNiTi系合金的原子布居数

Fig. 5. The effect of Al contents on elastic constants Al_xCrFeNiTi alloys. Al含量对Al_xCrFeNiTi系合金弹性模量的影响

Fig. 6. Effect of Al contents on B/G, Poisson’s ratio and (C₁₂−C₄₄) of Al_xCrFeNiTi alloys. Al含量对Al_xCrFeNiTi系合金的B/G、泊松比 和(C₁₂−C₄₄)的影响

Fig. 7. Correlativity between solid solution characteristics and elastic properties of Al_xCrFeNiTi alloys: (a) Ratio of thermodynamic entropy to enthalpy and B, G, E, B/G; (b) formation entahlpy and A_G, A_B. Al_xCrFeNiTi系合金固溶体特征参数和弹性性质之间的关系　(a) 热力学熵焓比 与B, G, E, B/G的关系; (b) 混合焓 与A_G, A_B的关系

Fig. 8. Anisotropy of Young modulus E of CrFeNiTi, Al₂CrFeNiTi alloys: (a) CrFeNiTi; (b) Al₂CrFeNiTi. 合金杨氏模量E的各向异性　(a) CrFeNiTi; (b) Al₂CrFeNiTi