Abstract
ABSTRACTThe hydrogen embrittlement behaviour of 3Cr has been investigated under mixed H2 with CO2 at different strain rates, hydrogen partial pressures, and in the presence/absence of steam. The slow strain rate test results show that the HE susceptibility of 3Cr increased with increasing hydrogen partial pressure, and the plasticity of 3Cr obviously decreased in the presence of steam. The effect of strain rate was negligible in H2/CO2 environment but showed a significant difference in H2/CO2/steam environment. The fracture was a ductile fracture mode in N2 environment and a brittle fracture mode in H2/CO2/steam environment. The reason for the severe plasticity loss of 3Cr in H2/CO2/steam environment was probably that the steam has a preferential adsorption onto the 3Cr surface compared with H2 and CO2. Consequences in CO2 combined with H2O to form H2CO3, which accelerated the anodic dissolution of 3Cr, and the physical adsorption of H2 on steel was enhanced.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
