Study on cut-edge corrosion mechanism of galvanized corrosion and improvement of corrosion resistance by utilizing multiphysics analysis
| Project/Area Number |
23560861
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Material processing/treatments
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
TADA EIJI 東京工業大学, 理工学研究科, 准教授 (40302260)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | 電位分布 / 電流分布 / イオン分布 / 腐食生成物 / ガルバニ腐食 / マイクロ電気化学 / 数値シミュレーション / カソード反応 / 数値シュミレーション |
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| Research Abstract |
This study focused on cut-edge corrosion mechanism of galvanized steels. In order to investigate anodic and cathodic reactions on steels with Zn corrosion products formed in 1 M NaCl and 1 M MgCl2, electrochemical microcell technique was employed. The morphology and compositions of Zn corrosion products formed on the steels depended on solution compositions and the distance from zinc coating layer. In addition, cathodic reaction was suppressed to some extent by deposition of the corrosion products. On the other hand, anodic reaction was suppressed on steel significantly by precipitation of the corrosion products containing Mg.
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Report
(4 results)
Research Products
(4 results)
