Analysis of Corrosion Process of Hot-Dip Zinc-Coated Steel Sheets in Simulated Acid Rain Solution with in-situ Raman Spectroscopy
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- NAKAMURA Norio
- Graduate School of Engineering, Shibaura Institute of Technology
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- TANAKA Yuichi
- Faculty of Engineering, Shibaura Institute of Technology
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- KANESAKI Ryota
- Graduate School of Engineering, Shibaura Institute of Technology
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- SOBUE Kazuharu
- Kanagawa Industrial Technology Center
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- IMAI Hachiro
- Graduate School of Engineering, Shibaura Institute of Technology
Bibliographic Information
- Other Title
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- in‐situラマン分光法を用いた模擬酸性雨水溶液中における溶融Znめっき鋼板の腐食過程の解析
- in-situラマン分光法を用いた模擬酸性雨水溶液中における溶融Znめっき鋼板の腐食過程の解析
- in situ ラマン ブンコウホウ オ モチイタ モギ サンセイウ スイヨウエキチュウ ニ オケル ヨウユウ Zn メッキ コウハン ノ フショク カテイ ノ カイセキ
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Abstract
Hot-dip zinc-coated steel sheets are used as an outdoor industrial material, but they corrode because of acid rain.<br>In this study, the corrosion process of hot-dip zinc-coated steel sheets in simulated acid rain solution with in-situ Raman spectroscopy has been studied.<br>The current density of specimen decreased with constant potential holding at −0.6V vs. Ag/AgCl in simulated acid rain solution. And, the main peak, ZnSO4·7H2O was detected with in-situ Raman spectroscopy at the time of decreasing current density. Therefore, it is considered to be the case that the following equation describes the reactions that occurred.<br>Zn2++SO42−+7H2O→ZnSO4·7H2O.<br>The current density was decreased by ZnSO4·7H2O because the growth of ZnSO4·7H2O covered surface area of the specimen.<br>Hot-dip zinc-coated steel sheets showed an anticorrosive effect as a result of the hot-dip zinc-coating layer being dissolved by a sacrificial anode function, and ZnSO4·7H2O was formed in the simulated acid rain solution.
Journal
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- Journal of The Surface Finishing Society of Japan
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Journal of The Surface Finishing Society of Japan 59 (4), 247-250, 2008
The Surface Finishing Society of Japan
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Details 詳細情報について
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- CRID
- 1390282679096075520
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- NII Article ID
- 10021169745
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- NII Book ID
- AN1005202X
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- ISSN
- 18843409
- 09151869
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- NDL BIB ID
- 9455007
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed