共晶高熵合金十年发展回顾(20142024):设计、制备与应用
王志军, 白晓昱, 王健斌, 姜慧, 焦文娜, 李天昕, 卢一平

Revisiting the Development of Eutectic High-Entropy Alloys over the Past Decade (2014-2024): Design, Manufacturing, and Applications
WANG Zhijun, BAI Xiaoyu, WANG Jianbin, JIANG Hui, JIAO Wenna, LI Tianxin, LU Yiping
图4 多种工艺调控下的共晶高熵合金微观组织[48,50~54]
Fig.4 Microstructures of EHEAs tailored by various processing methods
(a) BSE image, EBSD phase, and Inverse pole figures (IPFs) of the directionally solidified Al19Fe20Co20Ni41 EHEA, showing a herringbone-like eutectic microstructure (BEC—branched eutectic colonies, AEC—aligned eutectic colonies)[48]
(b) EBSD IPF map of as-printed AlCoCrFeNi2.1 EHEA, showing ultrafine nanolamellar eutectic colonies with different crystallographic orientations (Inset shows the EBSD phase map)[50]
(c) EBSD phase map of the anomalous eutectic structure in remelted additive manufactured Ni32Co30Cr10Fe10Al18 EHEA[51]
(d) EBSD phase map of equiaxed ultrafine-grained structure in the 90% cold-rolled AlCoCrFeNi2.1 EHEA after isothermal annealing[53]
(e) SEM image and EBSD phase map of the AlCoCrFeNi2.1 EHEA cold-rolled by 84%-86% followed by non-isothermally annealing, showing heterogeneous duplex microstructure consisting of lamellar and ultrafine-grained structure[52]
(f) IPFs of the phase-selectively recrystallized Ni30Co30Cr10Fe10Al18W2 EHEA, showing the microstructure with a fully recrystallized fcc phase embedded in the skeleton of a B2 phase[54]