Electrochemical Random Signal Analysis during Galvanic Corrosion of Anodized Aluminum Alloy
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- SAKAIRI Masatoshi
- Graduate School of Engineering, Hokkaido University
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- SHIMOYAMA Yukiya
- Graduate School of Engineering, Hokkaido University
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A new type of electrochemical random signal analysis technique was applied to galvanic corrosion of anodic oxide films formed on 6061-T6 aluminum alloy in NaCl containing 0.5 kmol⁄m3 H3BO4 ⁄ 0.05 kmol⁄m3 Na2B4O7 solutions. The effect of the anodic oxide film structure on the galvanic corrosion resistance was also examined. During incubation (before localized corrosion started), both current and potential change slightly from the initial value. The incubation period of porous type anodic oxide specimens is longer than that of barrier type anodic oxide specimens. During localized corrosion, the current and potential changing with fluctuations, and the potential and the current fluctuations show good correlation. The slope of the PSD of both potential spectra of anodized specimens is about minus one ( -1 ), after the localized corrosion has started. This technique allows observation of electrochemical impedance changes during localized corrosion.
収録刊行物
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- 実験力学
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実験力学 7 (Special_Issue), s114-s119, 2007
日本実験力学会
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詳細情報 詳細情報について
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- CRID
- 1390282680167052672
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- NII論文ID
- 10019742541
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- NII書誌ID
- AA11822914
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- ISSN
- 18844219
- 13464930
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- HANDLE
- 2115/75958
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- NDL書誌ID
- 8892197
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可