Author Affiliations
1School of Materials Science and Engineering, Shenyang Aerospace University, Shenyang 110136, China2School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, Chinashow less
Fig. 1. Effect of Al contents on valence electron concentration, formation enthalpy and structure of AlxCrFeNiTi 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AlxCrFeNiTi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 AlxCrFeNiTi alloys.
Al含量对AlxCrFeNiTi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 AlxCrFeNiTi alloys: (a) Electron density difference map on (110) plane for Al2CrFeNiTi; (b) the atomic Mulliken population of AlxCrFeNiTi alloys.
AlxCrFeNiTi系合金的电荷分布 (a) Al2CrFeNiTi在(110)面的差分电荷密度; (b) AlxCrFeNiTi系合金的原子布居数
Fig. 5. The effect of Al contents on elastic constants AlxCrFeNiTi alloys.
Al含量对AlxCrFeNiTi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 AlxCrFeNiTi alloys.
Al含量对AlxCrFeNiTi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 AlxCrFeNiTi alloys: (a) Ratio of thermodynamic entropy to enthalpy and B, G, E, B/G; (b) formation entahlpy
and AG, AB.
AlxCrFeNiTi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AG, AB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
元素 | 原子半径/Å | VEC | 熔点Tm/℃
| Al | 1.432 | 3 | 660.2 | Cr | 1.249 | 6 | 1857 | Fe | 1.241 | 8 | 1535 | Ni | 1.246 | 10 | 1453 | Ti | 1.462 | 4 | 1660 |
|
Table 1. Physical parameters of alloying elements in AlxCrFeNiTi alloys[15].
AlxCrFeNiTi系合金中元素的物理参数[15]
合金 | 弹性常数Cij/GPa
| C11 | C12 | C13 | C22 | C23 | C33 | C44 | C55 | C66 | CrFeNiTi | 276.1 | 158.8 | 158.8 | 276.1 | 158.8 | 274.4 | 46.1 | 46.1 | 95.0 | Al0.5CrFeNiTi
| 233.3 | 173.6 | 136.1 | 233.3 | 136.1 | 246.5 | 87.1 | 87.1 | 102.9 | AlCrFeNiTi | 198.1 | 139.3 | 139.3 | 198.1 | 139.3 | 218.1 | 90.3 | 90.3 | 91.5 | Al2CrFeNiTi
| 158.3 | 118.4 | 118.4 | 158.3 | 118.4 | 245.8 | 75.7 | 75.7 | 80.7 | Al3CrFeNiTi
| 191.6 | 124.9 | 130.4 | 191.6 | 130.4 | 148.2 | 104.6 | 104.6 | 77.3 | Al4CrFeNiTi
| 213.4 | 91.6 | 91.6 | 213.4 | 91.6 | 207.1 | 99.8 | 99.8 | 106.9 |
|
Table 2. Elastic constant Cij (in GPa) of AlxCrFeNiTi alloys with different Al contents.
不同Al含量下AlxCrFeNiTi系合金的弹性常数Cij