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Effect of crystallite orientation and external stress on hydride precipitation and dissolution in Zr2.5%Nb
(Elsevier Science, 2014-01)
Thermal cycling of Zr2.5%Nb pressure tubes specimens containing ∼100 wt ppm H between room temperature and 400 °C produces the dissolution and re-precipitation of zirconium hydride, with a distinctive hysteresis between ...
Microstructure and texture analysis of δ-hydride precipitation in Zircaloy-4 materials by electron microscopy and neutron diffraction
(Wiley Blackwell Publishing, Inc, 2014-02)
This work presents a detailed microstructure and texture study of various hydrided Zircaloy-4 materials by neutron diffraction and microscopy. The results show that the precipitated δ-ZrH1.66 generally follows the δ (111) ...
Quantification of dislocations densities in zirconium hydride by X-ray line profile analysis
(Pergamon-Elsevier Science Ltd, 2016-09-17)
Zirconium-based components in nuclear power plants are embrittled by precipitates of δ zirconium hydride, which involves a martensitic-type transformation of the hexagonal α-Zr lattice into the face-centered cubic Zr ...