Crystallographic texture and microstructural changes in fusion welds of recrystallized Zry-4 rolled plates
Journal of Nuclear Materials(2017)
摘要
This work presents a detailed characterization of the microstructural and crystallographic texture changes observed in the transition region in a weld between two Zircaloy-4 cold rolled and recrystallized plates. The microstructural study was performed by optical microscopy under polarized light and scanning electron microscopy (SEM). Texture changes were characterized at different lengthscales: in the micrometric size, orientation imaging maps (OIM) were constructed by electron backscatter diffraction (EBSD), in the millimetre scale, high energy XRD experiments were done at the Advanced Photon Source (USA) and compared to neutron diffraction texture determinations performed in the HIPPO instrument at Los Alamos National Laboratory.
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关键词
Zirconium,Phase transformations,Variant selection,Texture,High energy X-Ray diffraction,Fusion welding,Heat affected zone,GTAW,PAW
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