高熵合金的低温塑性变形机制及强韧化研究进展

刘俊鹏, 陈浩, 张弛, 杨志刚, 张勇, 戴兰宏

Progress of Cryogenic Deformation and Strengthening-Toughening Mechanisms of High-Entropy Alloys

LIU Junpeng, CHEN Hao, ZHANG Chi, YANG Zhigang, ZHANG Yong, DAI Lanhong

图12 Al19Co20Fe20Ni41共晶高熵合金两相组织的低温变形特点[100]

Fig.12 Deformation feature of dual-phases in Al19Co20-Fe20Ni41 eutectic high-entropy alloy (EHEA) at cryogenic environment[100] (a, b) structure features of L12 and B2 phase after tensile test (strain ε ≈ 12%) at 77 K, which forest-dislocation hardening occurs in the L12 phase (c) structure feature of L12 and B2 phase after tensile test (ε ≈ 16%) at 293 K (Inset shows cooperative deformation of the adjacent B2 phase)