Page 58 - The Effect of Hydrogen and Hydrides - ebook first test
P. 58
2
( ) = ∙ ( ∙ ∙ )
2
( ) = (0) + ∙ [ ∙ ( − ) ∙ ]
ℎ
= 0.007 = 0.5 MPa −1 ℎ =
76 ℎ = 79
2
= 0.0981
(0)
= 79
ℎ
(0) ≅ 0.021
Figure 4-9: Applied stress dependence of (ratio of fraction of ‘radial’ to ‘circumferential’ hydrides; denoted by R in the figure) for
specimens cut in the WD from two different sheets (A and B). The solid and dashed lines represent fits to the data
using the general expression derived from the Ells model given by Equation 4-10 in which account was also taken of
presumed residual compressive stresses acting in the tensile loading direction of these WD-oriented specimens.
Residual compressive stresses of 76 and 79 MPa were assumed for specimens taken from sheets A and B,
respectively (from [Sakamoto & Nakatsuko, 2006]).
Copyright © Advanced Nuclear Technology International Europe AB, ANT International, 2019.
