Design and fabrication of lightweight AlCrFeNiTix compositionally complex alloys with exceptional specific strength

被引：4

作者：

Li, Jun-Zhi ^{[1
]}

Bao, Wei-Zong ^{[1
]}

Chen, Jie ^{[1
]}

Yu, Bo-Hua ^{[1
]}

Zuo, Kun ^{[1
]}

Gao, Tian ^{[1
]}

Cai, Ze-Yun ^{[1
]}

Xie, Guo-Qiang ^{[1
,2
]}

机构：

[1] Harbin Inst Technol Shenzhen, Sch Mat Sci & Engn, Shenzhen 518055, Peoples R China

[2] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China

来源：

RARE METALS | 2024年 / 43卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Lightweight; Compositionally complex alloys; Specific yield strength; HIGH-ENTROPY ALLOYS; MECHANICAL-PROPERTIES; HIGH DUCTILITY; AL; MICROSTRUCTURES; TI; ALUMINUM;

D O I：

10.1007/s12598-024-02657-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study focuses on compositionally complex alloys (CCAs), aiming to achieve a balance between high strength and low density for new energy and aerospace applications. The composition of AlCrFeNiTix CCAs is strategically guided by employing density functional theory and the theoretical design of thermodynamic calculations. Bulk CCAs, particularly AlCrFeNiTi0.25 alloy, demonstrate remarkable specific yield strength (1640.8 MPa) and 22.7% maximum strain. The incorporation of Ti facilitates the formation of lightweight and high-strength L21 phase, contributing to the overall high specific strength. Synergistic effects of grain boundary strengthening, solid solution strengthening, Orowan strengthening and Peierls flow stress further enhance strength. Detailed exploration of microstructural changes during fracture reveals the role of ordered phases in suppressing crack propagation and absorbing energy within disordered phases, thereby improving the toughness and fracture resistance of CCAs. These methods and discoveries establish a robust foundation for advancing the development of novel lightweight CCAs.

引用

页码：3314 / 3328

页数：15

共 45 条

[1] Improved strength and conductivity of metallic-glass-reinforced nanocrystalline CuCrZr alloy [J].

Bao, Weizong ;

Chen, Jie ;

Yang, Xinxin ;

Xiang, Tao ;

Cai, Zeyun ;

Xie, Guoqiang .

MATERIALS & DESIGN, 2022, 214

[2] A scrap-tolerant alloying concept based on high entropy alloys [J].

Barnett, M. R. ;

Senadeera, M. ;

Fabijanic, D. ;

Shamlaye, K. F. ;

Joseph, J. ;

Kada, S. R. ;

Rana, S. ;

Gupta, S. ;

Venkatesh, S. .

ACTA MATERIALIA, 2020, 200 :735-744

[3] Effects of aluminum on microstructure and compressive properties of Al-Cr-Fe-Ni eutectic multi-component alloys [J].

Chen, X. ;

Qi, J. Q. ;

Sui, Y. W. ;

He, Y. Z. ;

Wei, F. X. ;

Meng, Q. K. ;

Sun, Z. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 681 :25-31

[4] Achieving excellent specific yield strength in non-equiatomic TiNbZrVMo high entropy alloy via metalloid Si doping [J].

Chen, Yao ;

Gao, Xuefeng ;

Qin, Gang ;

Chen, Ruirun ;

Guo, Jingjie .

MATERIALS LETTERS, 2023, 335

[5] Effect of Ti on microstructures and mechanical properties of high entropy alloys based on CoFeMnNi system [J].

Cui, Peng ;

Ma, Yimo ;

Zhang, Lijun ;

Zhang, Mengdi ;

Fan, Jiantao ;

Dong, Wanqing ;

Yu, Pengfei ;

Li, Gong ;

Liu, Riping .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2018, 737 :198-204

[6] A low-cost hierarchical nanostructured beta-titanium alloy with high strength [J].

Devaraj, Arun ;

Joshi, Vineet V. ;

Srivastava, Ankit ;

Manandhar, Sandeep ;

Moxson, Vladimir ;

Duz, Volodymyr A. ;

Lavender, Curt .

NATURE COMMUNICATIONS, 2016, 7

[7] Microstructural origins of high strength and high ductility in an AlCoCrFeNi2.1 eutectic high-entropy alloy [J].

Gao, Xuzhou ;

Lu, Yiping ;

Zhang, Bo ;

Liang, Ningning ;

Wu, Guanzhong ;

Sha, Gang ;

Liu, Jizi ;

Zhao, Yonghao .

ACTA MATERIALIA, 2017, 141 :59-66

[8] Mapping the world of complex concentrated alloys [J].

Gorsse, Stephane ;

Miracle, Daniel B. ;

Senkov, Oleg N. .

ACTA MATERIALIA, 2017, 135 :177-187

[9] A lightweight Al0.8Nb0.5Ti2V2Zr0.5 refractory high entropy alloy with high specific yield strength [J].

Jiang, Wentao ;

Wang, Xiaohong ;

Li, Siying ;

Ma, Tengfei ;

Wang, Ye ;

Zhu, Dongdong .

MATERIALS LETTERS, 2022, 328

[10] A novel Co-free Al0.75CrFeNi eutectic high entropy alloy with superior mechanical properties [J].

Jiao, Wenna ;

Li, Tianxin ;

Chang, Xiaoxue ;

Lu, Yiping ;

Yin, Guomao ;

Cao, Zhiqiang ;

Li, Tingju .

JOURNAL OF ALLOYS AND COMPOUNDS, 2022, 902

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