Abstract
A RECENT investigation1 of the Zr–Hf–H equilibrium system at pressures less than one atmosphere of hydrogen gas revealed the presence of hysteresis. Although this was not unexpected2, it was somewhat disconcerting and demanded further elucidation. Results presented here will show that: (1) decomposition pressure hysteresis must be considered when dealing with equilibrium between gases and multi-component alloy systems; (2) hysteresis always involved a region of more than one phase and was most prominent at lower temperatures where diffusion was slowest; (3) no evidence for an interfering surface film was found; (4) internal factors such as stress and large surface area accompanying a martensitic reaction are prominent in the hysteresis reactions of the Zr–Hf–H system.
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.
