Enhanced strength of L1 2-strengthened (FeCoNi) 79.5 Cr 10.5 Al 5 Ti 5 high-entropy alloy via Ta alloying and its refined strengthening mechanism model

被引：8
作者：
Lee, Jae Heung [1 ]
Lee, Jungwan [1 ]
Kwon, Hyeonseok [1 ]
Park, Hyojin [1 ]
Kim, Eun Seong [1 ]
Heo, Yoon-Uk [2 ]
Kim, Taek-Soo [3 ]
Kim, Hyoung Seop [1 ,2 ,4 ,5 ,6 ]
机构：
[1] Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, Pohang 37673, South Korea
[2] Pohang Univ Sci & Technol POSTECH, Grad Inst Ferrous & Eco Mat Technol, Pohang 37673, South Korea
[3] Korea Inst Ind Technol, Korea Inst Rare Met, Incheon 21999, South Korea
[4] Pohang Univ Sci & Technol POSTECH, Ctr Heterogen Met Addit Mfg, Pohang 37673, South Korea
[5] Yonsei Univ, Inst Convergence Res & Educ Adv Technol, Seoul 03722, South Korea
[6] Tohoku Univ, Adv Inst Mat Res WPI AIMR, Sendai 9808577, Japan
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2024年 / 910卷
基金：
新加坡国家研究基金会;
关键词：
High -entropy alloy; L1; 2; precipitate; Tantalum; Strengthening mechanism; Superposition; TEMPERATURE-DEPENDENCE; TENSILE PROPERTIES; PRECIPITATION; PREDICTION; RESISTANCE; STABILITY;
D O I：
10.1016/j.msea.2024.146885
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this study, we enhance the strength of L1 2 -strengthened high -entropy alloy, proposed in our previous study, by Ta alloying. Continuous precipitation is promoted, resulting in a remarkably high yield strength of 1144.8 +/- 19.3 MPa. Furthermore, we suggest a refined strengthening mechanism model, based on the superposition of multiple mechanisms.
引用
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页数：7
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