Protective Characteristics and Formation Mechanism of the Corrosion Product Films of B30 Tubes Exposed to Seawater
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG1992年第3期
论文作者：朱小龙 林乐耘
文章页码：192 - 196
摘 要：<正> The corrosion product films of two kinds ofB30 tubes（similar to CDA 715）exposed to seawat-er for various periods of time were investigated bySEM,AES and XPS.The results show that the pro-tective corrosion product film is thin,uniform andadherent.FeOOH is found to be present in the filmsurface,which confirms the hypothesis that ironhydroxide segregates at the surface of the film.TheFeOOH promotes Ni enrichment in the corrosionlayer by preventing Ni from running off.The corro-sion product film with no protectiveness is of lay-ered structure,loose and bad adherence.The for-mer film is formed through direct oxidation and thelatter by precipitation and redeposition from dis-solved species.
朱小龙，林乐耘
摘 要：<正> The corrosion product films of two kinds ofB30 tubes（similar to CDA 715）exposed to seawat-er for various periods of time were investigated bySEM,AES and XPS.The results show that the pro-tective corrosion product film is thin,uniform andadherent.FeOOH is found to be present in the filmsurface,which confirms the hypothesis that ironhydroxide segregates at the surface of the film.TheFeOOH promotes Ni enrichment in the corrosionlayer by preventing Ni from running off.The corro-sion product film with no protectiveness is of lay-ered structure,loose and bad adherence.The for-mer film is formed through direct oxidation and thelatter by precipitation and redeposition from dis-solved species.
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