Hydrogen diffusion under the effect of stress and temperature gradients

Journal article (2021)

Authors

Zhichao Zhang Energy Technology, University of Northumbria
Can Ayas Computational Design and Mechanics
V Vera Team Vera Popovich
Jurriaan W.R. Peeters Energy Technology
Research Group
Computational Design and Mechanics
Copyright: © 2021 Z. Zhang, C. Ayas, V. Popovich, J.W.R. Peeters
DOI: https://doi.org/10.1088/1742-6596/2116/1/012037
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Published Date

2021

Language

English

Research Group

Computational Design and Mechanics

Abstract

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.