Accumulation and transport of hydrogen in RUSFER-EK-181 ferritic-martensitic steel

The influence of heat treatment on interaction between hydrogen and RUSFER-EK-181 Russian ferritic-martensitic steel is studied by the method of thermodesorption mass spectrometry. Based on our experimental data combined with published data for the structure of ferritic-martensitic steels, it can be supposed that the precipitation of fine carbides considerably facilitates the hydrogen sorption. Numerical simulation of hydrogen transport in the steel is conducted.