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Monitoring of Hydrogen Absorption into Titanium Using Resistometry

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Title: Monitoring of Hydrogen Absorption into Titanium Using Resistometry
Authors: Azumi, Kazuhisa Browse this author →KAKEN DB
Asada, Yoshihide Browse this author
Ueno, Tomohiro Browse this author
Seo, Masahiro Browse this author
Mizuno, Tadahiko Browse this author
Issue Date: Sep-2002
Publisher: The Electrochemical Society
Journal Title: Journal of The Electrochemical Society
Volume: 149
Issue: 9
Start Page: B422
End Page: B427
Publisher DOI: 10.1149/1.1498257
Abstract: Hydrogen absorption into Ti electrodes during electrochemical cathodic polarization was monitored using resistometry. Electric resistance of Ti increased with H absorption due to growth of a hydride layer from the surface toward the inside. The growth rate of the hydride layer was estimated from resistance data and was found to depend on the polarization current density, existence of a preformed anodic oxide film, and shape of the specimen. For example, preformation of an anodic oxide film at a potential higher than the breakdown potential, rather, promotes hydrogen penetration. In the case of a thin wire electrode, the hydride layer grew in a nonuniform manner because the volume expansion induced cracking on the surface. Therefore, the average thickness of the hydride layer was estimated from the change in resistance. ©2002 The Electrochemical Society. All rights reserved.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 安住 和久

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