AbstractIn this paper, by using an ingenious method, the hydrogen isotope solubilities and diffusivities in GWHER-1 stainless steel have been determined by a vacuum heating degassing approach at the temperature range of 597–1022 K on a set of specimens with different sizes previously charged for 24 h under a hydrogen isotope pressure of 105 Pa in the temperature range of 800–1000 K. The permeabilities are then derived from the relation $\varPhi$ = DKs. It is found D = 1.52 $\times$10?6exp(?54100/RT), Ks = 2.2 $\times$ 10?6exp(?5400/RT) and $\varPhi$ = 3.3 $\times$ 10?12exp(?59500/RT) for hydrogen, where Ks (Sieverts' constant) is given in Pa?1/2, D in m2$\cdot $s?1$\cdot $Pa?1/2, T in K and R=8.31J$\cdot$mol?1$\cdot $K?1. By taking isotope effects into account, the corresponding Arrhenius relations for deuterium and tritium are also deduced.
Received: 28 September 2005
Revised: 30 November 2005
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10275017).
Cite this article:
Chen Zhi (陈志), Deng Bai-Quan (邓柏权), Peng Li-Lin (彭利林), Feng Kai-Ming (冯开明), Du Jia-Ju (杜家驹), Mao Ou (毛鸥) An ingenious approach of determining hydrogen isotope solubilities, diffusivities and permeabilities in GWHER-1 stainless steel 2006 Chinese Physics 15 1492
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