Yiyao Kang , Weiwei Liu , Xiaoya Wang , Zeyun Cai , Jin Li , Xuesong Leng , Hongsheng Chen
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引用次数: 0
Abstract
The corrosion behavior of heat-resistant alloys with different Fe contents in high-temperature supercritical CO2 was investigated by simulation and experiment. Results shown that CO2 molecules preferentially reacted with Cr to form Cr2O3. Cr2O3 layers were formed on all heat-resistant alloys. A middle Fe3O4 layer was formed in the Cr2O3 layers and Cr23C6 carbides were generated in the sub-layer matrix of Fe-containing alloys. The weight gains of alloys gradually increased with Fe content. The formation of Fe3O4 in the middle of Cr2O3 layer led to greater weight gain compared to Fe-free alloy. Fe-free alloy exhibited higher resistance to oxidation and carburization.
期刊介绍：
Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.
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