Corrosion behavior of eutectic high-entropy alloys in supercritical CO2 environments

被引：0

作者：

Yang, Wanhuan ^{[1
]}

Zhao, Xueli ^{[1
]}

Zou, Jichun ^{[1
,2
]}

Wang, Wenqin ^{[2
]}

Liu, Qi ^{[3
]}

Yang, Wen ^{[1
]}

Li, Shen ^{[2
]}

Zhong, Weihua ^{[1
]}

机构：

[1] China Inst Atom Energy, Div Reactor Engn Technol Res, Beijing 102413, Peoples R China

[2] Nanchang Univ, Sch Adv Mfg, Nanchang 330031, Peoples R China

[3] Hunan Univ, Coll Mat Sci & Engn, Changsha 413000, Hunan, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2024年 / 29卷

关键词：

Supercritical CO 2; Eutectic high -entropy alloy; Passive layer; Corrosion resistance; STEELS; CR;

D O I：

10.1016/j.jmrt.2024.02.195

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study explores the corrosion resistance of AlCoCrFeNi2.1 eutectic high -entropy alloy (EHEA) in supercritical CO2 (S-CO2). The corrosion behavior was meticulously examined under conditions of 500 degrees C and 25 MPa CO2 over a duration of 800 h. The formation of distinct passivation layers on the face -centered cubic (FCC) and bodycentered cubic (BCC) B2 phases was observed, leading to a cooperative passivation effect of Al and Cr. The protective Al2O3 oxide layers, which were dense and continuous, played a crucial role in inhibiting carburization and further oxidation, thereby significantly enhancing the corrosion resistance. Interestingly, no carburization was observed in this study.

引用

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页码：4931 / 4940

页数：10

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