MODELING OF THE MICROSTRUCTURAL EVOLUTION IN CR-MO STEELS DURING TEMPERING AND HYDROGEN EXPOSURE

摘要

Hydrogen attack is a dangerous material degradation process that occurs in steels subjected to high pressures of hydrogen at elevated temperatures. A detailed study of the coupled processes responsible for hydrogen attack requires a combination of continuum mechanics with solid solution thermodynamics, kinetics and chemistry. This paper is concerned with the development of numerical models that combine these ingredients.