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Volume 5: High Pressure Technology; Nondestructive Evaluation Division; Student Paper Competition | 2008

Evaluation of the Corrosion Rate for Acidic Bottom Plates of an Aboveground Oil Tank by the AE Method

Naoya Kasai; So Soon Park; Kentaro Utatsu; Kazuyoshi Sekine; Shigeo Kitsukawa; Tsukasa Mitsuta

An AE method is an effective technique that can inspect corrosion damage of tank bottom plates to prevent leakage accidents of oil storage tanks. However, a correlation between AE signals and the corrosion behavior for bottom plates is not fully clarified. In this study, the authors considered that the corrosion regions in bottom plates become a strong acid environment by chloride ions as shown our previous work. The correlation between the AE signals and the corrosion behavior with a potentiostat for test pieces was examined in the environment. The polarization resistance was measured with an AC impedance method using a frequency response analyzer. It was clear that the polarization resistance indicated the corrosion rate for a test pieces in the experiments. While measuring the AE signals, the corrosion rate was monitored with a test piece. As a result, the AE signal showed the good correlation with the corrosion rates of the test pieces.© 2008 ASME


Materials Transactions | 2005

AE Source and Relation between AE Activity and Rate of Corrosion of Oil Tank Bottom Plate on Acidic Soils

Sosoon Park; Shigeo Kitsukawa; Kenji Katoh; Sigenori Yuyama; Hiroaki Maruyama; Kazuyoshi Sekine


Materials Transactions | 2006

Development of AE Monitoring Method for Corrosion Damage of the Bottom Plate in Oil Storage Tank on the Neutral Sand under Loading

Sosoon Park; Shigeo Kitsukawa; Kenji Katoh; Sigenori Yuyama; Hiroaki Maruyama; Kazuyoshi Sekine


Corrosion Science | 2009

Correlation between corrosion rate and AE signal in an acidic environment for mild steel

Naoya Kasai; Kentaro Utatsu; Sosoon Park; Shigeo Kitsukawa; Kazuyoshi Sekine


Materials evaluation | 2007

Verification of acoustic emission testing of floor conditions in aboveground tanks by comparison of acoustic emission data and floor scan testing

Shigenori Yuyama; Minoru Yamada; Kazuyoshi Sekine; Shigeo Kitsukawa


Materials evaluation | 2007

High pressure institute of japan recommended practice for acoustic emission testing for corrosion in the bottom plate of aboveground tanks

Shigenori Yuyama; Minoru Yamada; Kazuyoshi Sekine; Shigeo Kitsukawa


International Journal of Pressure Vessels and Piping | 2016

Application of risk curve for statistical analysis of backside corrosion in the bottom floors of oil storage tanks

Naoya Kasai; Takuma Maeda; Koichi Tamura; Shigeo Kitsukawa; Kazuyoshi Sekine


Journal of Japan High Pressure Institute | 2010

Estimation of the Initial Thickness Distribution of Bottom Plate of Oil Storage Tank

Asamichi Kamei; Shigeo Kitsukawa; Kazuyoshi Sekine; Tomohiko Tsuchida; Katsuki Iwata


JOURNAL OF HIGH PRESSURE INSTITUTE OF JAPAN | 2008

Statistical Analysis of Corrosion in the Bottom Floors of Oil Storage Tanks (Second Report)

Koichi Tamura; Hiroyuki Haga; Yoshio Tsuji; Shigeo Kitsukawa; Naoya Kasai; Kazuyoshi Sekine


The Proceedings of Design & Systems Conference | 2005

3209 Risk Estimation for Corrosion in Bottom Floor in Oil Storage Tanks and it's Application to AE Global Diagnosis

Kazuyoshi Sekine; Shigeo Kitsukawa; Naoya Kasai; Minoru Yamada; Shigenori Yuyama; Hiroaki Maruyama

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Kazuyoshi Sekine

Yokohama National University

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Naoya Kasai

Yokohama National University

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Sosoon Park

Yokohama National University

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Kentaro Utatsu

Yokohama National University

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So Soon Park

Yokohama National University

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Takuma Maeda

Yokohama National University

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Yoshio Tsuji

Yokohama National University

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