Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23023
Title: Modeling of hydrogen diffusion process at a blunt notch in zirconium
Authors: Ma, X
Shi, S
Hu, S
Woo, C
Chen, L
Keywords: Diffusion
Hydrogen
Non-uniform applied stress
Phase-field
Zirconium
Issue Date: 2005
Publisher: Editorial Board of Journal of University of Science and Technology Beijing
Source: Journal of University of Science and Technology Beijing, 2005, v. 12, no. 5, p. 416-421 How to cite?
Journal: Journal of University of Science and Technology Beijing 
Abstract: The two-dimensional diffusion of interstitial hydrogen atoms in zirconium in a non-uniform stress field was simulated using the phase-field method. The interaction between hydrogen interstitials and the stress field was described by Khachaturyan's elastic theory. The Cahn-Hilliard diffusion equation was then solved by an explicit finite difference method. The result shows that hydrogen atoms diffuse to the high-tensile hydrostatic region near the tip of the notch. The content of hydrogen near the tip of the notch increases by 13%, while the stress distribution caused by hydrogen interstitials around the notch is modified by only 0.7%.
URI: http://hdl.handle.net/10397/23023
ISSN: 1005-8850
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