An investigation was made of the effect of irradiation upon room-temperature H diffusion (table 79) in the steel during cathodic H-charging in a cell which contained 4%H2SO4 solution.

C.R.Brinkman, J.M.Beeston: US Atomic Energy Report IN-1200 (1968)

 

 

 

Table 79

Apparent Room-Temperature Diffusivity of H in Irradiated HY-80 Steel

 

Specimen

H Surface Concentration (ppm)

D (cm2/s)

non-irradiated

7.5

6 x 10-6

non-irradiated

9.6

6.4 x 10-6

non-irradiated

10.2

8.3 x 10-6

irradiateda

13.25

4.4 x 10-6

irradiateda

11.5

1.33 x 10-6

irradiateda

13.0

2.2 x 10-6

a: dose = 4 x 1017n/cm2, energy >1MeV