Environmentally assisted cracking in light water reactors

Technical Report · Fri Jun 01 00:00:00 EDT 1990

DOI:https://doi.org/10.2172/6819025· OSTI ID:6819025

Kassner, T. F.; Park, J. Y.; Ruther, W. E.; Shack, W. J.; Diercks, D. R.; Soppet, W. K. ^[1]

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1. Argonne National Lab., IL (USA)

This report summarizes work performed by Argonne National Laboratory on environmentally assisted cracking in light water reactors during the six months from October 1988 to March 1989. The effects of load ratio on stress corrosion cracking (SCC) of Types 316NG, 304, and CF-3M cast stainless steels (SSs) were investigated by fracture-mechanics crack-growth-rate (CGR) tests in high-temperature water. The influence of organic impurities on the SCC of Type 316NG SS was also investigated in long-term CGR tests. Tests to determine the susceptibility of 4-in.-diameter Types 316NG and 304 SS pipe weldments to SCC in simulated BWR environments have been conducted. The influence of carbonate at concentrations between 0.1 and 3300 ppM on the SCC behavior of sensitized Type 304 SS in deoxygenated water (<5 ppB) was determined in constant-extension-rate tensile tests. Fatigue tests were conducted on Type 316NG SS in air and BWR environments to assess the degree of conservatism in the ASME Code Section 3 fatigue design curves. CGR tests are being conducted to determine susceptibility of A533-Gr B low-alloy ferritic steel to SCC in simulated BWR environments. 39 refs., 20 figs., 7 tabs.

• Research Organization: Nuclear Regulatory Commission, Washington, DC (USA). Div. of Engineering; Argonne National Lab., IL (USA)
• Sponsoring Organization: NRC
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6819025
• Report Number(s): NUREG/CR-4667-Vol.8; ANL--90/4-Vol.8; ON: TI90012661
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
ALLOYS
AUSTENITIC STEELS
BWR TYPE REACTORS
CHEMICAL REACTIONS
CHEMISTRY
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
CHROMIUM-NICKEL-MOLYBDENUM STEELS
CORROSION
CORROSION RESISTANT ALLOYS
CRACKS
DOCUMENT TYPES
FATIGUE
HEAT RESIS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
IMPURITIES
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
MATERIALS
MECHANICAL PROPERTIES
MOLYBDENUM ALLOYS
NICKEL ALLOYS
PIPES
PROGRESS REPORT
REACTOR MATERIALS
REACTORS
STAINLESS STEEL-304
STAINLESS STEEL-316
STAINLESS STEELS
STANDARDS
STEEL-CR17NI12MO3
STEEL-CR19NI10
STEELS
STRESS CORROSION
WATER CHEMISTRY
WATER COOLED REACTORS
WATER MODERATED REACTORS
WELDED JOINTS