纳米结构多主元合金的力学行为及强塑化机制

Processing math: 100%

刘畅, 吴戈, 吕坚

Nanostructural Multi-Principal-Element Alloys: Mechanical Properties and Toughening Mechanisms

LIU Chang, WU Ge, LU Jian

图3 CrFeCoNiPd合金^[13]和VCoNi合金^[8]的原子尺度结构成分信息

Fig.3 Atomic-scale structural and chemical information of the CrFeCoNiPd^[13] and VCoNi^[8] alloys
(a) HAADF-STEM image of the CrFeCoNiPd alloy (Inset shows the corresponding selected area electron diffraction)^[13]
(b) corresponding maps of horizontal normal strain (ε_xx ), vertical normal strain (ε_yy ), and shear strain (ε_xy ) of the CrFeCoNiPd alloy^[13]
(c) nano-beam electron diffraction (NBED) pattern of the VCoNi alloy taken at [112] zone axis, the yellow arrows highlight the diffuse reflections at

$\frac{1}{2}$

{

$\bar{3} 11$

}^[8]
(d) energy-filtered dark field TEM image of the VCoNi alloy taken using the diffuse reflections in Fig.3c (Inset is a magnified TEM image highlighting the coherently diffraction clusters corresponding to chemical short-range orders (CSROs))^[8]
(e, f) EDS maps of the VCoNi alloy showing the elemental distributions of the alloy^[8]