共晶高熵合金十年发展回顾(2014—2024):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[ |
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)[ (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)[ (c) EBSD phase map of the anomalous eutectic structure in remelted additive manufactured Ni32Co30Cr10Fe10Al18 EHEA[ (d) EBSD phase map of equiaxed ultrafine-grained structure in the 90% cold-rolled AlCoCrFeNi2.1 EHEA after isothermal annealing[ (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[ (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[ |
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