Double-wire arc additive manufacturing of AlCoFeNi eutectic high entropy alloy with balanced strength and plasticity

被引：3
作者：
Huang, Yifei [1 ,2 ]
Chen, Xizhang [1 ,2 ]
Ma, Shengguo [3 ]
Wen, Ming [4 ]
Wang, Yu [1 ,2 ]
Wang, Yanhu [1 ,2 ]
机构：
[1] Wenzhou Univ, Coll Mech & Elect Engn, Zhejiang Prov Key Lab Laser Proc Robot, Wenzhou 325035, Zhejiang, Peoples R China
[2] Wenzhou Univ, China Int Sci & Technol Cooperat Base Laser Proc R, Wenzhou 325035, Zhejiang, Peoples R China
[3] Taiyuan Univ Technol, Inst Appl Mech, Coll Mech & Vehicle Engn, Taiyuan 030024, Shanxi, Peoples R China
[4] Sino Platinum Met Co Ltd, State Key Lab Adv Technol Comprehens Utilizat Plat, Kunming 650106, Peoples R China
来源：
MATERIALS LETTERS | 2024年 / 363卷
基金：
中国国家自然科学基金;
关键词：
Double -wire arc additive manufacturing; Eutectic high entropy alloys; Microstructure; Mechanical properties; TENSILE DEFORMATION-BEHAVIOR; MECHANICAL-PROPERTIES; ENHANCED STRENGTH; MICROSTRUCTURE; DUCTILITY;
D O I：
10.1016/j.matlet.2024.136312
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Eutectic high entropy alloys (EHEAs) have received widespread attention due to their excellent mechanical properties. This letter successfully used double-wire arc additive manufacturing technology to prepare a new type of Al20.33Co21.60Fe30.45Ni27.62 EHEA. Its phase composition, microstructure, and mechanical properties were characterized and studied. The alloy exhibited a biphasic lamellar eutectic microstructure composed of an ordered BCC (B2) phase and an ordered FCC (L12) phase. The ultimate tensile strength and elongation at room temperature are as high as 1022 MPa and 13.2 % respectively. Superior to most other EHEAs produced using casting and arc melting technologies. This approach has great potential in engineering applications.
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页数：4
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