The effect of temperature on the lattice spacing around a notched Zircaloy-4 specimen determined from X-ray diffraction
37th Annual CNS-CNA Student Conference - 2013 June 11

Presented at:
37th Annual CNS-CNA Student Conference
2013 June 11
Toronto, Canada
Session Title:
Student Conference Session

Sean Hanlon (Carleton University)
Scott Read (Carleton University)
Glenn McRae (Carleton University)
Kit Coleman (Carleton University)
Brian Leitch (Carleton University)


High intensityX-ray diffraction has been used to investigate lattice parameter and line width changes in a notched Zircaloy-2 compact tension specimen undergoing heating and cooling. It was found that the lattice spacing varied with temperature in part because of thermal expansion, but also because of annealing of residual stresses. Measurements made at many locations along the plane of the notch illustrate how the lattice spacing evolvesthroughout the specimen. Measurements of widths of the (1010), (1120), and (0002)diffraction peaksand comparisons of the line spacings,for both the a-parameter and c-parameter, with literature values of α–zirconium, at various temperatures,are used to demonstrate the effects of annealing.

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