高熵合金跨尺度异构强韧化及其力学性能研究进展

安子冰, 毛圣成, 张泽, 韩晓东

Strengthening-Toughening Mechanism and Mechanical Properties of Span-Scale Heterostructure High-Entropy Alloy

AN Zibing, MAO Shengcheng, ZHANG Ze, HAN Xiaodong

图12 Co21.5Cr21.5Fe21.5Mn21.5Ni14高熵合金经过RASP处理后的梯度组织[42]

Fig.12 Gradient microstructures of the RASP treated Co21.5Cr21.5Fe21.5Mn21.5Ni14 alloy[42] (a) schematic of the grain size gradient through the plate thickness (b-d) EBSD images of the alloy at different depths from the surface (e-g) TEM images of twin structures in regions (I), (II) and (III) (The insets are SAED patterns from each region) (h) a high-resolution HAADF-STEM image of the deformation twins in region (I) (i) variation of the average grain size through the plate thickness (j) variation of the average thickness of deformation twins through the plate thickness