Y-Hf co-doped AlCoCrFeNi2.1 eutectic high-entropy alloy with excellent oxidation and spallation resistance under thermal cycling conditions at 1100 °C and 1200 °C

被引：20

作者：

Lu, Jie ^{[1
]}

Zhang, Han ^{[2
]}

Li, Ling ^{[1
]}

Chen, Ying ^{[2
]}

Liu, Xuanzhen ^{[1
]}

Zhao, Xiaofeng ^{[1
]}

Guo, Fangwei ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Adv High Temp Mat & Preci, Shanghai 200240, Peoples R China

[2] Univ Manchester, Sch Mat, Manchester M13 9PL, Lancs, England

来源：

CORROSION SCIENCE | 2021年 / 187卷

基金：

中国国家自然科学基金;

关键词：

High-entropy alloy; Eutectic structure; Oxidation; High-temperature; Thermal cycling; BOND COATS; DIFFUSION; ADDITIONS; FAILURE; SEGREGATION; MECHANISMS; DUCTILITY; STRENGTH; BEHAVIOR; YTTRIUM;

D O I：

10.1016/j.corsci.2021.109515

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The oxidation behavior of AlCoCrFeNi2.1 eutectic high-entropy alloy (EHEA) with Y-Hf co-doping under thermal cycling conditions at 1100 degrees C and 1200 degrees C is studied in comparison to the conventional NiCoCrAlYHf alloy (CNA). The oxidation rates of EHEA at two temperatures are much lower than those of CNA. Additionally, the resistance to Al2O3 scale spallation for the EHEA is much superior to that for the CNA. It is well demonstrated that increasing the interfacial toughness is more beneficial to improve the scale spallation resistance in comparison to the decrease in oxidation rate.

引用

页数：9

共 12 条

[1] Y-Hf co-doped AlCoCrFeNi high-entropy alloy coating with superior oxidation and spallation resistance at 1100 °C
Lu, Jie
Li, Ling
Chen, Ying
Liu, Xuanzhen
Zhao, Xiaofeng
Guo, Fangwei
Xiao, Ping
CORROSION SCIENCE, 2021, 182
[2] Y-doped AlCoCrFeNi2.1 eutectic high-entropy alloy with excellent oxidation resistance and structure stability at 1000°C and 1100°C
Lu, Jie
Zhang, Han
Chen, Ying
Ling, Li
Liu, Xuanzhen
Xiao, Weiwei
Ni, Na
Zhao, Xiaofeng
Guo, Fangwei
Xiao, Ping
CORROSION SCIENCE, 2021, 180
[3] Y-Hf co-doped Al1.1CoCr0.8FeNi high-entropy alloy with excellent oxidation resistance and nanostructure stability at 1200 °C
Lu, Jie
Zhang, Han
Li, Ling
Huang, Aihui
Liu, Xuanzhen
Chen, Ying
Zhang, Xiancheng
Guo, Fangwei
Zhao, Xiaofeng
SCRIPTA MATERIALIA, 2021, 203
[4] Y/Hf-doped AlCoCrFeNi high-entropy alloy with ultra oxidation and spallation resistance
Lu, Jie
Chen, Ying
Zhang, Han
Ni, Na
Li, Ling
He, Limin
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CORROSION SCIENCE, 2020, 166
[5] Microstructure and oxidation behavior of the Y/Ta/Hf co-doped AlCoCrFeNi high-entropy alloys in air at 1100 °C
Hu, Junhao
Gu, Cang
Li, Jianyu
Li, Chao
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CORROSION SCIENCE, 2023, 212
[6] Superior oxidation resistance of a Y-Hf co-doped Al 18 Co 30 Cr 10 Fe 10 Ni 32 eutectic high-entropy alloy at 1100-1300 ° C
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JOURNAL OF ALLOYS AND COMPOUNDS, 2024, 992
[7] Unraveling the oxidation mechanism of Y-doped AlCoCrFeNi high-entropy alloy at 1100 °C
Ren, H.
Chen, R. R.
Liu, T.
Gao, X. F.
Qin, G.
Wu, S. P.
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APPLIED SURFACE SCIENCE, 2024, 652
[8] Y/Hf-doped Al0.7CoCrFeNi high-entropy alloy with ultra oxidation and spallation resistance at 1200 °C
Lu, Jie
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CORROSION SCIENCE, 2020, 174
[9] Excellent corrosion resistance of electron beam welded joint and remelted layer of eutectic high-entropy alloy AlCoCrFeNi2.1
Yang, Jianguo
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Liu, Yifei
Zheng, Wenjian
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INTERMETALLICS, 2023, 154
[10] Microstructural evolution mediated creep deformation mechanism for the AlCoCrFeNi2.1 eutectic high-entropy alloy under different testing conditions
Li, Yafei
Chen, Weijian
Lu, Chuanyang
Li, Huaxin
Zheng, Wenjian
Ma, Yinghe
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MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2022, 857

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