Page 233 - The Effect of Hydrogen and Hydrides - ebook first test

(0 0 0 2) −
(0 0 0 2) −  ∥ (1 1 1)
̅
̅
[1 2 1 0] − ‖ [1 1 0]  = 0°
{0 0 0 2} − (1 1 1)
 = 70° {0 0 0 2} −
(1 1 1)
α

α  
α
  α
 = 70°

(1 1 1)
(1 1 1)


 

(1 1 1)

Figure 4-110: Details of diffractograms recorded at 270C during cooling of the L2 specimen with and without an applied uniaxial
tensile stress, showing the effect of stress on hydride precipitation (from [Vizcaíno et al., 2014]). Plots (a) and (b) show
diffractograms obtained from the azimuthal sections shown in Figure 4-99, with hydride precipitates clearly visible
under load but absent in the unloaded condition. Plot (c) shows diffractograms obtained by integrating the counts
registered around the full diffraction ring, in which case the hydride phase present under load becomes almost
invisible.

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