Probability of failure in BWR reactor coolant piping: Probabilistic treatment of stress corrosion cracking in 304 and 316NG BWR piping weldments

Technical Report · Mon Dec 01 04:00:00 EST 1986

DOI:https://doi.org/10.2172/6965463· OSTI ID:6965463

Harris, D. O.; Dedhia, D. D.; Eason, E. D.; Patterson, S. D.

The purpose of this report is to describe recent expansions of the previously developed PRAISE code to include recent information to make it more applicable to probabilistic analysis of sensitized weldments in BWR piping. The expansions of PRAISE are concentrated in three areas: (1) probabilistic treatment of stress corrosion crack initiation in 304 and 316NG; (2) probabilistic treatment of residual stresses; and (3) benchmarking with field observations of cracking in 304 BWR piping weldments. This expanded version of PRAISE is called PRAISE-CC, and is a significant extension of earlier versions, which considered only piping failures due to the growth of pre-existing crack-like weld defects. PRAISE-CC retains the earlier PRAISE capabilities.

• Research Organization: Failure Analysis Associates, Palo Alto, CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6965463
• Report Number(s): NUREG/CR-4792-Vol.3; UCID-20914-Vol.3; ON: TI87003765
• Country of Publication: United States
• Language: English

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36 MATERIALS SCIENCE
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ALLOYS
BWR TYPE REACTORS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COOLING SYSTEMS
CORROSION
CORROSION RESISTANT ALLOYS
CRACK PROPAGATION
CRACKS
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FAILURES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
MATERIALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
PIPES
PROBABILITY
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR MATERIALS
REACTORS
STAINLESS STEEL-304
STAINLESS STEEL-316
STAINLESS STEELS
STEELS
STRESS CORROSION
WATER COOLED REACTORS
WATER MODERATED REACTORS
WELDED JOINTS