E3S Web of Conf.
Volume 225, 2021II International Conference “Corrosion in the Oil & Gas Industry” 2020
|Number of page(s)||3|
|Section||Corrosion Mechanisms and Testing Methods|
|Published online||05 January 2021|
The influence of elastic deformations in high-strength structural materials on the hydrogen transport
1 Institute for Problems in Mechanical Engineering RAS, V.O., Bolshoj pr., 61, St.-Petersburg, 199178 Russia
2 Peter the Great Saint-Petersburg Polytechnic University, Polytekhnicheskaya, 29, St.-Petersburg, 195259 Russia
* Corresponding author: email@example.com
In this work, the diffusion equation for the gas-solid system is revised to describe the non-uniform distribution of hydrogen in steels. The first attempt to build a theoretical and general model and to describe the diffusion process as driven by a chemical potential gradient is made. A linear elastic solid body and ideal gas, diffusing into it, are considered. At this stage, we neglect any traps and non-linear effects. The coupled diffusion-elastic boundary problem is solved for the case of the cylinder under the tensile loads. The obtained results correspond to the experimental ones. Based on them, the assumptions about the correctness of the model and its further improvement are suggested.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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