The Corrosion of an Amorphous Fe70C10P10B5Mo5 Alloy in Various CO2/CO Mixed Gases at 500 °C

Kai, Wu; Cheng, F.P.; Chen, Y. T.; Huang, Her Hsiung; Zhang, W.

doi:10.1007/s11085-019-09904-2

Cited by 1 publication

(1 citation statement)

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“…As early as the 1960s, researchers began to study the corrosion of steels in gas-cooled nuclear reactors, in which CO 2 is the main coolant [14][15][16]. More recently, the corrosion behaviors of many heat-resisting alloys, such as ferritic-martensitic steels (FMs) [17][18][19][20][21][22][23], austenitic steels [19,22,[24][25][26], nickel-base alloys [12,[27][28][29] and other new-type alloys [30][31][32], in high temperature CO 2 have also been studied extensively. The results show that the corrosion forms of heat-resistant alloys in a high temperature CO 2 environment are mainly oxidation and carburization.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behaviors of Heat-Resisting Alloys in High Temperature Carbon Dioxide

Yang¹,

Qian²,

Kuang³

2022

Materials

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The supercritical carbon dioxide Brayton cycle is a promising power conversion option for green energies, such as solar power and nuclear reactors. The material challenge is a tremendous obstacle for the reliable operation of such a cycle system. A large body of research indicates that high-temperature corrosion of heat-resisting alloys by CO2 results in severe oxidation and, in many cases, concurrent internal carburization. This paper mainly reviews the oxidation behavior, carburization behavior and stress corrosion behavior of heat-resisting alloys in high temperature CO2. Specifically, the main factors affecting the oxidation behavior of heat-resistant alloys, such as environmental parameters, surface condition and gaseous impurity, are discussed. Then, carburization is explored, especially the driving force of carburization and the consequences of carburization. Subsequently, the effects of the environmental parameters, alloy type and different oxide layers on the carburizing behavior are comprehensively reviewed. Finally, the effects of corrosion on the mechanical behavior and stress corrosion cracking behavior of heat-resisting alloys are also summarized. The corrosion performances of heat-resisting alloys in high temperature CO2 are systematically analyzed, and new scopes are proposed for future material research. The information provided in this work is valuable for the development of structural material for the supercritical carbon dioxide Brayton cycle.

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