... The Babcock & Wilcox Company used Mn-Mo-Ni automatic submerged-arc welds with the Linde 80 flux type for the fabrication of 14 currently operating PWR reactor vessels. Due to the fact that the weld wire was copper-coated (high copper content) and that they have low upper-shelf toughness...

... The B&W Owners Group (B&WOG) developed the Master Integrated Reactor Vessel Surveillance Program (MIRVP) to encompass all domestic operating pressurized water reactors (PWRs) with reactor vessels that contain Linde 80 submerged-arc welds. These PWRs include the reactor vessels fabricated...

...; and c) an atomic scale, atom probe field ion microscopy study into the nanostructure-chemistry of a CRP. small angle neutron scattering submerged-arc welds reactor vessel Russell-Brown hardening model radiation embrittlement Brian D. Wirth 1, G. Robert Odette2, Wayne A. Pavinich3, Glenn E...

... specimens. This method was validated for Linde 1092 welds using unirradiated Charpy-sized and reconstituted Charpy-sized specimens by comparison of results with those from compact fracture specimens. submerged-arc welds fracture toughness reactor vessel transition range master curve reconstituted...

... the existing radiation embrittlement models to Linde 80 welds. This paper describes the detailed plans for future work. submerged-arc welds neutron irradiation copper precipitation reactor vessel transmission electron microscopy optical microscopy small-angle neutron scattering field-ion...

... The Heavy-Section Steel Irradiation Program conducted the Second and Third Irradiation Series to investigate the effects of irradiation on the ductile fracture toughness of seven commercially fabricated low upper-shelf welds. All seven submerged-arc welds were fabricated with copper-coated wire...

... The objective of this study was to determine the effect of neutron irradiation on the shift and shape of the lower-bound curve to crack-arrest data. Two submerged-arc welds with copper contents of 0.23 and 0.31 wt% were commercially fabricated in 220-mm-thick plate. Crack-arrest specimens...

... bounding curve for irradiated material. Charpy V-notch impact toughness compact specimens copper content elastic-plastic fracture fracture toughness irradiation K Ic light-water reactors lower bound regulatory guide nonlinear analyses RT NDT submerged-arc welds statistical analyses...

...-wall crack under bending. experimental-analytical fracture mechanics tungsten/inert-gas welds submerged-arc welds finite-element method J -integral virtual crack extension J crack-tip opening angle fracture mechanics nonlinear fracture mechanics Michihiko Nakagaki,^ Charles W...

... that test reactor irradiated yield strength data and fracture toughness data is equivalent to that of a power reactor. A comparison of Charpy properties indicates that the data may be sensitive to parameters other than neutron environments. power reactor test reactor submerged-arc welds radiation...

... fraction of Type 309 in the specimen. radiation submerged-arc welds stainless steels pressure vessels neutron'irradiation degradation tension tests cladding William R. Corwin,1Reynold G. Berggren,1and Randy K. Nanstad1 Charpy Toughness and Tensile Properties of a Neutron-Irradiated...