Tailoring planar slip for synergistic improved strength and plasticity in an Al 0.75 NbZr 1.5 Ti 3 V lightweight high-entropy alloys

被引：1
作者：
Lv, Xiang [1 ,2 ]
Zhang, Hao [1 ,2 ]
Li, Zu [1 ,2 ]
Deng, HaoWei [1 ,2 ]
Zhang, Tao [1 ,2 ]
机构：
[1] Guangzhou Univ, Sch Phys & Mat Sci, Guangzhou 510006, Peoples R China
[2] Guangzhou Univ, Res Ctr Adv Informat Mat CAIM, Huangpu Res & Grad Sch, Guangzhou 510530, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2024年 / 994卷
基金：
中国国家自然科学基金;
关键词：
Lightweight high-entropy alloys; Rapid solidification; B2; phase; Strengthen and Total elongation; Planar slip; SHORT-RANGE ORDER; MECHANICAL-PROPERTIES; MICROSTRUCTURE; GROWTH;
D O I：
10.1016/j.jallcom.2024.174689
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this study, we investigated the rapid solidification of Al 0.75 NbZr 1.5 Ti 3 V lightweight high-entropy alloy by lowering the temperature of the cast copper mold. Mechanical characterization results indicate that the alloy achieved a total elongation (TE) of 18.2% and a yield strength (YS) of 1218.9 MPa. This represents a synergistic improvement of 100.0% in TE and 9.0% in YS compared to the as-melted sample. Microstructural analysis reveals that rapid solidification increased the B2 phase content in the alloy and altered its morphology, leading to a higher density of planar slip, thus achieving a synergistic enhancement of strength and plasticity in the alloy.
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页数：7
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