- 中国核心期刊（遴选）数据库收录期刊
- 中国科技论文统计源期刊
- 中国学术期刊综合评价数据库来源期刊
| Citation: |
LONG Jiachen, LIU Zhu, ZHANG Lefu, GUO Xianglong. General Corrosion Behavior of 310S and 316L Stainless Steels in Supercritical Carbon Dioxide[J]. Corrosion & Protection, 2025, 46(5): 24-29. DOI: 10.11973/fsyfh220689
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The corrosion behavior of 310S and 316L austenite stainless steels in the supercritical carbon dioxide (S-CO2) environment of 600 ℃/20 MPa was investigated. The general corrosion tests were carried out in an aoutoclave for 500 h. The morphology, composition and structure of the oxide films on sample surfaces were characterized by scanning electron micro-scopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). The results show that the corrosion resistance of 310S stainless steel was higher than that of 316L stainless steel, and the weight gains of stainless steels 310S and 316L corroded for 500 h were 6.82 mg/dm2 and 35.25 mg/dm2, respectively. The thickness of oxide scale on 310S was about 1 μm, with an outer Fe-Cr-Ni spinel layer and an inner Cr2O3 layer which was dense and continuous. The thickness of oxide scale on 316L was about 5 μm with an outer Fe3O4 layer and an inner Fe-Cr-Ni spinel layer which was loose and not protective. The the difference in the corrosion behavior between 310S and 316L was due to their different Cr concentrations.
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