Open AccessHydrogen diffusion under the effect of stress and temperature gradients
Author(s) -
Zhichao Zhang,
Can Ayas,
Vera Popovich,
Jurriaan Peeters
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2116/1/012037
Subject(s) - hydrogen , materials science , diffusion , hydrogen embrittlement , temperature gradient , finite element method , metal , stress (linguistics) , thermodynamics , embrittlement , chemical physics , composite material , metallurgy , chemistry , physics , linguistics , philosophy , organic chemistry , quantum mechanics
In this paper, a finite element (FE) model is developed to investigate lattice hydrogen diffusion in a solid metal under the influence of stress and temperature gradients. This model is applied to a plate with a circular hole which is subjected to temperature and hydrogen concentration gradients. It is demonstrated that temperature gradients significantly influence hydrogen diffusion and hence susceptibility to hydrogen embrittlement when utilizing hydrogen for gas turbines.