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Influence of Zinc Ions on Initial Stage of Localized Corrosion of Zn and Zn–Al Alloy Coated Steels with Photon Rupture Method
| Title: | Influence of Zinc Ions on Initial Stage of Localized Corrosion of Zn and Zn–Al Alloy Coated Steels with Photon Rupture Method |
| Authors: | Sakairi, Masatoshi Browse this author →KAKEN DB | | Uchida, Yoshiyuki Browse this author | | Kikuchi, Tatsuya Browse this author →KAKEN DB | | Takahashi, Hideaki Browse this author |
| Keywords: | coated steel | | localized corrosion | | Zn ions | | laser beam irradiation | | corrosion resistance |
| Issue Date: | 15-Jul-2008 |
| Publisher: | 日本鉄鋼協会 |
| Journal Title: | ISIJ International |
| Volume: | 48 |
| Issue: | 7 |
| Start Page: | 988 |
| End Page: | 993 |
| Publisher DOI: | 10.2355/isijinternational.48.988 |
| Abstract: | The effect of pre-dissolved Zn ions in the solutions on the initial stage of localized corrosion after oxide films of Zn and Zn–Al alloy coated steels were removed by a photon rupture method, focused pulsed Nd-YAG laser beam irradiation, was investigated electrochemically. Zn ions can be inhibited dissolution of the Zn coated layer by precipitation of zinc hydroxide, which is formed by hydrolysis reaction of dissolved Zn ions in neutral buffer solutions. However, Zn ions do not affect the dissolution of a Zn–Al alloy coated layer. The absence of inhibition of the Zn–Al layer dissolution can be explained by pH change to lower values at the irradiated area by the hydrolysis reaction of the dissolved Al ions. The effect of Zn ions on corrosion inhibition of the coated layer by the photon rupture method established here was in good agreement with polarization experiments. |
| Rights: | 著作権は日本鉄鋼協会にある |
| Type: | article |
| URI: | http://hdl.handle.net/2115/76149 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 坂入 正敏
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