Measurement of hydrogen solubility, diffusivity and permeability in HR-1 stainless steel

摘要: Abstract Hydrogen solubility and diffusivity in HR-1 steel have been determined by a vacuum heating degassing technique at 597–1022 K on set of specimens with different sizes previously charged for 24 h under hydrogen pressure 105 Pa the temperature range 800–1000 K. The permeability was then derived from relation Φ = DKs. It is found that D 1.52×10−6 exp(−54100/RT), Ks 2.2×10−6 exp(−5400/RT), 3.3×10−12 exp(−59500/RT) where (Sieverts' constant) given −1 2 , m2s−1, m2s−1 T R 8.31 J gatoms−1K−1.