Abstract
AbstractThe ultrahigh strength cupronickel alloy Marinel and the nickel alloy Monel K-500 were saturated with gaseous hydrogen at 450°C and their fatigue behaviour was measured and compared with that of hydrogen free material. The presence of hydrogen was found to reduce thefatigue properties of Monel K-500, but did not affect the performance of Marinel alloy. No evidence of obvious microstructural change induced by hydrogen was apparent, but use of hydrogen diffusivity data was made in calculations relating to the diffusivity and trapping of hydrogen in the two materials. It was demonstrated that the solubility of hydrogen, the degree of dislocation-hydrogen interaction, and the ease of hydrogen trap formation (as a precursor to crack initiation) were lower in Marinel alloy than in Monel K-500, thus contributing to an explanation of the resistance of Marinel alloy to the debilitating effects of hydrogen.
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.
