Evaluation of the cementite morphology influence on the hydrogen induced crack nucleation and propagation path in carbon steels by Shabnam Karimi (19457575)

“…Two carbon steels with lamellar cementite morphology (pearlitic microstructure) and spherical or broken lamellas cementite morphology (spheroidite microstructure), both with approximately the same carbon equivalent, were used in this study. The ECCB tests were performed in H-free and two H charging steps with −1050 mV and −1550 mV charging potential versus Ag/AgCl reference electrode. …”