Hydrogen Diffusion in Metals

Application ID: 116021

Hydrogen embrittlement refers to the degradation of metal ductility due to the absorption of hydrogen. The metal becomes more brittle and thus cracks might initiate at lower stress levels. It is important to estimate hydrogen concentration and the speed at which it diffuses into the metal in order to predict and avoid crack formation and propagation.

This model shows how to simulate the uptake and diffusion of hydrogen in a notched metal sample from an aqueous electrolyte. It uses the Transport in Solids interface to model both the concentration-driven and stress-driven diffusion in the solid domain.

This model example illustrates applications of this type that would nominally be built using the following products: