Hydrogen-Induced Enhancement of Atomic Diffusion in Metals

Abstract:

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Atomic diffusion in metals is invariably enhanced by dissolution of hydrogen, in some cases by many orders of magnitude. This is a consequence of the formation of superabundant vacancies (SAVs), one of the general properties of M-H systems. Some examples of H-induced enhancement of interdiffusion in alloys and a detailed investigation of self-diffusion in Nb hydride, NbHx, are described, together with accelerated atomic migration observed in electrodeposited metals, also a consequence of SAV formation in the electrodeposition process.

Info:

Periodical:

Defect and Diffusion Forum (Volumes 297-301)

Edited by:

Andreas Öchsner, Graeme E. Murch, Ali Shokuhfar and João M.P.Q. Delgado

Pages:

132-141

DOI:

10.4028/www.scientific.net/DDF.297-301.132

Citation:

Y. Fukai "Hydrogen-Induced Enhancement of Atomic Diffusion in Metals", Defect and Diffusion Forum, Vols. 297-301, pp. 132-141, 2010

Online since:

April 2010

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$35.00

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