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

页数：6

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