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Proceedings Paper

Residual stress investigations of a ferritic steel welded plate by a nondestructive neutron diffraction technique
Author(s): Yuri V. Taran; Gianni Albertini; Giovanni Bruno; Federico Cernushi; Franco Rustichelli
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Paper Abstract

The reverse time of flight technique, used by the High Resolution Fourier Diffractometer at the IBR-2 pulsed reactor of the FLNP in Dubna, Russia, is exploited to approach the neutron diffraction measurement of Residual Stress (RS) state in a UNI-Fe510D (Italian code) ferritic steel welded plate. Stresses very near to the yield strength have been found and an inevitable intergranular microstress state overlaps to the weld process stresses. A constant uniaxial stress along the axis transversal to the weld also overlaps to weld stresses. The former brings to oscillations in the total stress behavior and to unphysical values, and is unfortunately not directly detectable. Results are nevertheless in good agreement with previous works and with the theoretical consideration which have to be done to calculate the unstrained lattice parameter. This has been found not to vary from the parent material to the welded zone.

Paper Details

Date Published: 5 May 1999
PDF: 10 pages
Proc. SPIE 3687, International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (5 May 1999); doi: 10.1117/12.347451
Show Author Affiliations
Yuri V. Taran, Joint Institute for Nuclear Research (Russia)
Gianni Albertini, Univ. of Ancona (Italy)
Giovanni Bruno, Univ. of Ancona (France)
Federico Cernushi, ENEL-CRAM (Italy)
Franco Rustichelli, Univ. of Ancona (Italy)

Published in SPIE Proceedings Vol. 3687:
International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering
Alexander I. Melker, Editor(s)

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