Tensile behavior of CoCrFeMnNi high-entropy alloy with intermediate strain rate included

被引：0
作者：
Du, Bing [1 ,2 ]
Ding, Yi [1 ,2 ]
Bai, Xin [1 ,2 ]
Atif, Muhammad [1 ,2 ]
Qin, Dongyang [1 ,2 ,3 ]
Li, Yulong [1 ,2 ,3 ]
机构：
[1] Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, Peoples R China
[2] Northwestern Polytech Univ, Shaanxi Key Lab Impact Dynam & its Engn Applicat I, Xian 710072, Peoples R China
[3] Northwestern Polytech Univ, Joint Int Res Lab Impact Dynam & its Engn Applicat, Xian 710072, Peoples R China
来源：
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS | 2024年 / 108卷
基金：
中国国家自然科学基金;
关键词：
High-entropy alloys; Strain rate sensitivity; Intermediate strain rate; Deformation twinning; Constitutive model; MECHANICAL-PROPERTIES; DEFORMATION; TEMPERATURE; STRESS; MICROSTRUCTURE; STEEL;
D O I：
10.1016/j.euromechsol.2024.105412
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
High-entropy alloys (HEAs) have garnered considerable attention for their exceptional mechanical properties, positioning them as promising candidates for diverse industrial applications. This study investigates the mechanical properties of CoCrFeMnNi HEAs over a wide range of strain rates. Based on a novel electromagnetic loading device equipped with high-speed photography, intermediate strain rate tests of the HEAs are conducted. The intermediate strain rate test results show the effectiveness of the experiments. Experimental results exhibit a remarkable strain rate sensitivity of the HEA during tension tests. Microstructural analysis reveals the collaborative interplay between deformation twins and dislocations, enhancing strength-plasticity relationships under tension loading. Finally, a constitutive model (M-JCK) integrated by Johnson-cook model and KHL model is proposed to describe the mechanical behavior of HEAs. The results demonstrate that the M-JCK model outperforms traditional models, providing enhanced accuracy in capturing the complex responses of HEAs across varying strain rates.
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页数：11
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共 46 条
[21]   Microstructural evolution and tensile property of gradient microstructure CoCrFeMnNi high-entropy alloy induced by pre-torsion [J].
Li, Xinfeng ;
Liu, Yang ;
Cui, Yan ;
Zhang, Jin ;
Fu, Jianxun .
JOURNAL OF ALLOYS AND COMPOUNDS, 2023, 955
[22]   Mechanical properties of high-entropy alloys with emphasis on face-centered cubic alloys [J].
Li, Zezhou ;
Zhao, Shiteng ;
Ritchie, Robert O. ;
Meyers, Marc A. .
PROGRESS IN MATERIALS SCIENCE, 2019, 102 :296-345
[23]   SOME EXPERIMENTS WITH THE SPLIT HOPKINSON PRESSURE BAR [J].
LINDHOLM, US .
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1964, 12 (05) :317-335
[24]   Superior strength-ductility CoCrNi medium-entropy alloy wire [J].
Liu, Jun-Peng ;
Chen, Jin-Xi ;
Liu, Tian-Wei ;
Li, Chen ;
Chen, Yan ;
Dai, Lan-Hong .
SCRIPTA MATERIALIA, 2020, 181 :19-24
[25]   Mechanical Properties and Serration Behavior of a NiCrFeCoMn High-Entropy Alloy at High Strain Rates [J].
Liu, Ruoyu ;
Yao, Xianrui ;
Wang, Bingfeng .
MATERIALS, 2020, 13 (17)
[26]   Extremely high dislocation density and deformation pathway of CrMnFeCoNi high entropy alloy at ultralow temperature [J].
Naeem, Muhammad ;
He, Haiyan ;
Harjo, Stefanus ;
Kawasaki, Takuro ;
Zhang, Fan ;
Wang, Bing ;
Lan, Si ;
Wu, Zhenduo ;
Wu, Yuan ;
Lu, Zhaoping ;
Liu, Chain T. ;
Wang, Xun-Li .
SCRIPTA MATERIALIA, 2020, 188 (21-25) :21-25
[27]   Symmetric split Hopkinson compression and tension tests using synchronized electromagnetic stress pulse generators [J].
Nie Hailiang ;
Suo Tao ;
Shi Xiaopeng ;
Liu Huifang ;
Li Yulong ;
Zhao Han .
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2018, 122 :73-82
[28]   A versatile split Hopkinson pressure bar using electromagnetic loading [J].
Nie, Hailiang ;
Suo, Tao ;
Wu, Beibei ;
Li, Yulong ;
Zhao, Han .
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2018, 116 :94-104
[29]   Effect of dislocation blocking on fracture behavior of Al and α-Fe:: a multiscale study [J].
Noronha, SJ ;
Farkas, D .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 365 (1-2) :156-165
[30]   Strain rate and temperature dependent fracture of aluminum alloy 7075: Experiments and neural network modeling [J].
Pandya, Kedar S. ;
Roth, Christian C. ;
Mohr, Dirk .
INTERNATIONAL JOURNAL OF PLASTICITY, 2020, 135
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