Fracture evaluations of fusion line cracks in nuclear pipe bimetallic welds

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Description

In both BWRs and PWRs there are many locations where carbon steel pipe or components are joined to stainless steel pipe or components with a bimetallic weld. The objective of the research described in this report was to assess the accuracy of current fracture analyses for the case of a crack along a carbon steel to austenitic weld fusion line. To achieve the program objective, material property data and data from a large-diameter pipe fracture experiment were developed to assess current analytical methods. The bimetallic welds evaluated in this program were bimetallic welds obtained from a cancelled Combustion Engineering plant. ... continued below

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Medium: P; Size: 109 p.

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Scott, P.; Francini, R.; Rahman, S.; Rosenfield, A. & Wilkowski, G. April 1, 1995.

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Description

In both BWRs and PWRs there are many locations where carbon steel pipe or components are joined to stainless steel pipe or components with a bimetallic weld. The objective of the research described in this report was to assess the accuracy of current fracture analyses for the case of a crack along a carbon steel to austenitic weld fusion line. To achieve the program objective, material property data and data from a large-diameter pipe fracture experiment were developed to assess current analytical methods. The bimetallic welds evaluated in this program were bimetallic welds obtained from a cancelled Combustion Engineering plant. The welds joined sections of the carbon steel cold-leg piping system to stainless steel safe ends that were to be welded to stainless steel pump housings. The major conclusion drawn as a result of these efforts was that the fracture behavior of the bimetallic weld evaluated in this program could be evaluated with reasonable accuracy using the strength and toughness properties of the carbon steel pipe material in conjunction with conventional elastic-plastic fracture mechanics or limit-load analyses. This may not be generally true for all bimetallic welds, as discussed in this report.

Physical Description

Medium: P; Size: 109 p.

Notes

INIS; OSTI as TI95010502

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  • Other Information: PBD: Apr 1995

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  • Other: TI95010502
  • Report No.: NUREG/CR--6297
  • Report No.: BMI--2182
  • Grant Number: FG02-90ER14135
  • DOI: 10.2172/53643 | External Link
  • Office of Scientific & Technical Information Report Number: 53643
  • Archival Resource Key: ark:/67531/metadc699194

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • April 1, 1995

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • April 8, 2016, 8:08 p.m.

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Scott, P.; Francini, R.; Rahman, S.; Rosenfield, A. & Wilkowski, G. Fracture evaluations of fusion line cracks in nuclear pipe bimetallic welds, report, April 1, 1995; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc699194/: accessed November 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.