Abstract
In the present work, a proposition to model trapped hydrogen dragging by mobile traps is considered, based on trap mobility and reaction-diffusion equations, used to describe the temporal evolution of the trapped hydrogen concentration and of the trap density. A transient trapping kinetics permits to link the diffusive and the trapped hydrogen.
This allows to describe interactions between trap creation (by plasticity), trapping process, hydrogen diffusion and hydrogen dragging by mobile traps.
A parametric study is conducted on a small-scale yielding configuration to study the impact of the proposed approached on the hydrogen transport process.