Review on corrosion of alloys for application in supercritical carbon dioxide brayton cycle

Ziyuan Xu; Yingying Yang; Shijie Mao; Weidong Wu; Qiguo Yang

doi:10.1016/j.heliyon.2023.e22169

Review on corrosion of alloys for application in supercritical carbon dioxide brayton cycle

Heliyon. 2023 Nov 10;9(11):e22169. doi: 10.1016/j.heliyon.2023.e22169. eCollection 2023 Nov.

Authors

Ziyuan Xu¹, Yingying Yang^{1

2}, Shijie Mao¹, Weidong Wu¹, Qiguo Yang¹

Affiliations

¹ School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China.
² Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai, 200093, China.

Abstract

The supercritical carbon dioxide (S-CO₂) Brayton cycle is considered a promising power generation system because of its high efficiency, simple layout, and compact configuration. Furthermore, it is applicable to thermal and nuclear power generation. Because the key end equipment of this system is exposed to a high-temperature and high-pressure S-CO₂ environment for a long duration, the high-temperature corrosion resistance of this equipment has been investigated extensively. This paper provides a review of recent studies pertaining to the corrosion behavior of candidate materials for high-temperature components in the S-CO₂ Brayton cycle system. Additionally, the effects of internal microstructure, metal element content and external environment (temperature, pressure, impurities, etc.) on the corrosion behavior of alloys, including oxidation and carburizing corrosion are analyzed. Problems pertaining to the corrosion behavior of candidate materials are highlighted, and possible areas for future research are proposed.

Keywords: Brayton cycle; Carburization; Oxidation; Superalloy; Supercritical carbon dioxide (S–CO2).

Publication types

Review