Effect of Oxide Film on the Reduction of Hydrogen Permeation Rate in Stainless Steel(<Special Issue>Recent Advances in Materials and Processing [II])
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概要
- 論文の詳細を見る
Characteristics of hydrogen permeation in the stainless steel 304 modified by either facing, ion sputtering, carbon coating or annealing were investigated in order to establish the safe hydrogen-energy-infrastructure using welding. A stationary hydrogen flux from the stainless steel surface was measured by using a system with an orifice. The pressure difference of the specimen was able to maintain constant by controlling the gas flow rate from the orifice in low pressure vessel. The hydrogen permeability was low in two cases of a thin stainless steel with fine facing and that annealed at 1370K for 2hours. In these cases, the specimens' surfaces were considered to play hydrogen trap role and to prevent from pairing hydrogen atoms. On the other hand, high hydrogen permeability was obtained in the case of Argon plasma cleaning a low-pressure-vessel side surface. These results suggest that oxide film on the specimens' surface prevent hydrogen desorption.
- 一般社団法人日本機械学会の論文
- 2006-01-15
著者
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Suzumura Akio
Department Of Mechanical And Aerospace Engineering Tokyo Institute Of Technology
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Naito Takafumi
Tokyo Institute Of Technology
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IKESHOJI Toshi-Taka
Department of Mechanical and Aerospace Engineering, Graduate School of Science and Engineering, Toky
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Yamazaki Takahisa
Department Of Mechanical And Aerospace Engineering Tokyo Institute Of Technology
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Ikeshoji Toshi
Department Of Mechanical And Aerospace Engineering Tokyo Institute Of Technology
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IKESHOJI Toshi-Taka
Department of Mechanical & Aerospace Engineering, Tokyo Institute of Technology
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SUZUMURA Akio
Department of Mechanical & Aerospace Engineering, Tokyo Institute of Technology
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YAMAZAKI Takahisa
Department of Mechanical & Aerospace Engineering, Tokyo Institute of Technology
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