Page 161 - The Effect of Hydrogen and Hydrides - ebook first test

(2 2 0) ‖ ND (1 1 1) ‖ RD

 

̅
(0 0 0 2) α−Zr ∥ RD (1 1 2 0) α− ∥ ND

Figure 4-83: Pole figures for zirconium hydride precipitates in and around the HAZ of the weld (Z1 and Z2) and in the bulk plate
material (Z3). On the left are the experimentally determined results obtained from analysis of a single diffraction image
and on the right are the calculated pole figures determined from the experimentally determined (not shown) pole figure
of the Zr phase and δhydride/Zr orientation relationships assumed to be given by [1 1 ̅ 0] ‖ [1 2 ̅ 1 0] −

and (1 1 1) ≈ ‖ (0 0 0 1) − (from [Santisteban et al., 2010]).

4.6.3.2

(1 1 1) δ (2 2 0) δ
ℎ
ℎ )
2
= ℎ √ℎ + + 2
2

1 = 4.7577 Å
(≡ )
1

 Å

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