Synergistic effect of aluminum lactate and sodium molybdate on freshwater corrosion of carbon steel under irradiation

照射下における炭素鋼の淡水腐食に対する乳酸アルミニウムとモリブデン酸ナトリウムの相乗効果

Otani, Kyohei; Kato, Chiaki; Igarashi, Takahiro

A novel corrosion inhibitor of carbon steel in fresh water using Al lactate was proposed and its corrosion-inhibition mechanism was investigated. 0.75 mM Al lactate and 0.25 mM sodium molybdate were the most inhibitive to the corrosion of carbon steel in 3 mM NaCl. Al $^{3+}$ and MoO $_{4}$ $^{2-}$ in solution formed the metal cation layer on carbon steel with few defects, and the layer did not contain Fe. The metal cation layer on carbon steel inhibited both the cathodic oxygen reduction reaction and anodic iron dissolving reaction and thus enhances the corrosion protection of carbon steel in fresh water.

使用言語	:	English
掲載資料名	:	Corrosion
巻	:	79
号	:	11
ページ数	:	p.1277 - 1286
発行年月	:	2023/11
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キーワード	:	福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident; Corrosion; Corrosion Inhibitors; Carbon Steel; XPS; Aluminium lactate

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論文URL	:	https://doi.org/10.5006/4386
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登録番号 : AA20221054
抄録集掲載番号 : 52000019
論文投稿番号 : 27409

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