2012 Fiscal Year Final Research Report
Corrosion Prediction through Modeling of Polarization Curve Based on Flow Properties in the Vicinity of Reaction Surface
| Project/Area Number |
23760429
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Tokyo University of Science |
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Principal Investigator |
SUGA Kazuhiro 東京理科大学, 理工学部, 助教 (30408992)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 腐食予測 / 流れ加速腐食 / 分極曲線 / 数値シミュレーション / 電気化学測定 |
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| Research Abstract |
This study proposed a prediction method of corrosion in complex flow fields using numerical simulations and simple electrochemical measurements in l aboratory. First, the polarization curves, which give the properties of corrosion reaction, were modeled as a function of the wall shear stress on metal surface. Next, a prediction system of corrosion speed and location was developed using electrostatic simulation and the modeled polarization curves from numerically estimated wall shear stress of a target structure. The comparison between a prediction and an experimental result was carried out under a complex flow field in order to discuss the effectiveness of the developed system.
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