5 May 1999 Residual stress investigations of a ferritic steel welded plate by a nondestructive neutron diffraction technique
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Proceedings Volume 3687, International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering; (1999) https://doi.org/10.1117/12.347451
Event: International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, 1998, St. Petersburg, Russian Federation
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.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yuri V. Taran, Gianni Albertini, Giovanni Bruno, Federico Cernushi, Franco Rustichelli, "Residual stress investigations of a ferritic steel welded plate by a nondestructive neutron diffraction technique", Proc. SPIE 3687, International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (5 May 1999); doi: 10.1117/12.347451; https://doi.org/10.1117/12.347451
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