Evolution of Co2Nb Laves phase and deformation twins in novel CoCrFeNiCuNb eutectic high entropy alloy

被引：6
作者：
Ramkumar, K. R. [1 ]
Park, Hyojin [2 ]
Jeong, Sang Guk [2 ]
Kim, Eun Seong [2 ]
Wu, Qingfeng [1 ]
Zargaran, Alireza [1 ]
Sivasankaran, S. [3 ]
Kim, Hyoung Seop [1 ,2 ,4 ,5 ]
机构：
[1] Pohang Univ Sci & Technol POSTECH, Grad Inst Ferrous & Energy Mat Technol GIFT, Pohang 37673, South Korea
[2] Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, Pohang 37673, South Korea
[3] Qassim Univ, Coll Engn, Dept Mech Engn, Buraydah 51452, Saudi Arabia
[4] Tohoku Univ, Adv Inst Mat Res WPI AIMR, Sendai 9808577, Japan
[5] Yonsei Univ, Inst Convergence Res & Educ Adv Technol, Seoul 03722, South Korea
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2024年 / 892卷
基金：
新加坡国家研究基金会;
关键词：
Eutectic HEA; Stacking fault energy; Co 2 Nb laves phase; TWIP effect; Microstructure; Compression behavior; STACKING-FAULT ENERGY; MECHANICAL-PROPERTIES; MICROSTRUCTURE; DUCTILITY;
D O I：
10.1016/j.msea.2023.146002
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This study presents the development of non-equiatomic CoCrFeNiCuNb eutectic high -entropy alloy achieved by adjusting the stacking fault energy. The evolved Co2Nb Laves phase and Cu -rich precipitates within the FCC matrix interacted with deformation twins, leading to fracture strength (1.8 GPa) and fracture strain (42%) with a steady-state strain -hardening.
引用
收藏
页数：6
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