Fe7(CoNiMn)80B13 共晶高熵合金的深过冷非平衡凝固行为及微观组织演变

王叶青, 付珂, 赵永柱, 苏礼季, 陈正

Non-Equilibrium Solidification Behavior and Microstructure Evolution of Undercooled Fe7(CoNiMn)80B13 Eutectic High-Entropy Alloy

WANG Yeqing, FU Ke, ZHAO Yongzhu, SU Liji, CHEN Zheng

图4 在中等和大过冷度下Fe7(MnCoNi)80B13共晶高熵合金的SEM-BSE像

Fig.4 SEM-BSE images of the Fe7(CoNiMn)80B13 eutectic high-entropy alloys under ΔT = 57 K (a-c), ΔT = 90 K (d-f), ΔT = 139 K (g-i), and ΔT = 198 K (j-l) with different magnifications (The microstructure at the region I in Fig.4a is magnified in Fig.4b, and those at the regions II and III in Fig.4f represent two kinds of eutectic structure with different lamellar spacing. EDS results of regions P1-P3 in Fig.4i are listed in Table 1. The area enclosed by dashed lines in Fig.4j show the clustered eutetic structures)