Nondestructive Control of Residual Stress State of Weld Regions by X-Ray Diffraction Methods
V. Monin, J.T. Assis, and T. Gurova, Instituto Politecnico da UERJ, RJ, Brasil
FULL-TEXT - ABSTRACT The use of X-ray diffraction methods provides the wide possibilities of applying x-ray tensometry to nondestructive control of residual stresses arising after different technologies, especially after welding processes. In this paper the “Sin2 - ?” method of X-ray stress analysis by using diffractometer with proportional coordinate sensitive detector is presented. The high sensibility of detector permits to diminish the wide of irradiated area up to 0,1 mm and gives possibility to realize the fine measurements of residual stress distribution in weld region . The study of influence of different causes forming real residual stress distribution in weld region is carried out.
Publication Source: NDTISS '99 - International Symposium on NDT Contribution to the Infrastructure Safety Systems, Nov 1999 in Tores Brazil.
Publisher: Center of Tecnology, Federal University of Santa Maria (UFSM) - [Homepage]
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