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

[11] A comparative study on the oxidation behavior and failure mechanisms of conventional NiCoCrAl alloy and in-situ composite AlCoCrFeNi2.1 eutectic high-entropy alloy at 1300 °C
Lu, Jie
Zhang, Han
Ren, Guoliang
Chen, Ying
Luo, Lirong
Cai, Huangyue
Shan, Xiao
Zhang, Xiancheng
Zhao, Xiaofeng
COMPOSITES PART B-ENGINEERING, 2024, 269
[12] The impact of Al/Cr ratio on the oxidation kinetics of Y-doped AlCoCrFeNi high-entropy alloys at 1100 °C
Sun, Xiaoyu
Li, Xiaolong
Guo, Sheng
Zhu, Lilong
Teng, Jianwei
Jiang, Liang
Moverare, Johan
Li, Xin-Hai
Peng, Ru Lin
INTERMETALLICS, 2025, 176

← 1 2 →