Abstract
Detailed measurements of the p (H 2)– x – T relation in the fcc phase of Fe–H alloys revealed the characteristics of supercritical anomalies, with the critical point located at around a hydrogen pressure of 4–5 GPa and a temperature of 400 ± 100 ° C. The vacancy–hydrogen (Vac–H) cluster concentration in the fcc phase estimated from the lattice contraction was proportional to the hydrogen concentration independently of temperature and hydrogen pressure. A small lattice contraction due to the superabundant vacancy formation was also observed in the bcc phase, in accordance with previous thermal desorption measurements, and showed a similar dependence on the hydrogen concentration.
Sign-in/Register to access full text options 
Free) 
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 call
