Characterization of crystallographic texture by high energy X-ray diffraction in a 0-4 weld

1290/5000 Zircaloy is used in the nuclear industry to manufacture pressure tanks as well As well as the sheaths of the fuel elements. During the welding of these Materials are produced microstructural changes and important crystallographic texture. These changes are relevant, since the properties in the welded area can therefore Differ significantly from those of the original material. In this work, a study of the Changes in shape, grain size and crystallographic texture in the area Affected by the heat in the vicinity of a welding of two plates of Zircaloy-4. For Images were obtained with the scanning electron microscope (SEM) with the technique Of electron backscattered diffraction (EBSD), in addition to optical microscopy under light Polarized. On the other hand, measurements of the crystallographic texture were made by the High-energy synchrotron light diffraction technique, which were carried out in the Argonne National Laboratory APS (Advanced Photon Source) instrument, USA. Thank you To the high intensity of X-rays could also be characterized the texture of the hydride phase. These changes are presented as variations of the pole figures and in the case of phase Hexagonal Zr through Kearns factors. (author)