Effect of SO42− on the corrosion of 316L stainless steel in molten FLiNaK salt
The effect of SO 4 2− on the corrosion behavior of 316 L stainless steel (SS) in molten FLiNaK (LiF-NaF-KF: 46.5–11.5–42 mol.%) salt was studied. Results reveal that the SO 4 2− in the salt remarkably accelerates the corrosion of 316 L SS by promoting the dissolution of Cr, leading to increasing intergranular corrosion of the alloy. On the other hand, the results of structural characterization indicate that the SO 4 2− can react with Mn to form MnS at the grain boundaries of the alloy. The galvanic couple between MnS and steel matrix could further accelerate the intergranular corrosion of 316 L SS in molten fluoride salt environments.
研究领域:
材料科学
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腐蚀科学
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无机化学
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核工程材料
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高温电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）