2000-hour stress-corrosion cracking tests on 90-10 cupronickel in simulated Hanford groundwater

Technical Report · Sun Feb 01 00:00:00 EST 1987

OSTI ID:5784263

Mills, W J

Self-loaded fracture mechanics specimens were tested in simulated groundwater at 150/degree/C to evaluate the susceptibility of 90-10 cupronickel to environmentally enhanced cracking. The test duration was 2000 hours. Electron fractographic evidence indicated that no stress corrosion cracking occurred during the test. Compliance methods demonstrated that a substantial amount of crack extension did not occur during the 2000-hour exposure, but this method was insensitive to detecting crack growth increments less than 0.030 inch. Conventional macroscopic examination of fracture surfaces could not be used to determine if any crack extension occurred during the test because stains were observed beyond the original precrack. The stains were attributed to artifacts associated with postcracking procedures. 7 refs., 11 figs., 3 tabs.

• Research Organization: Hanford Engineering Development Lab., Richland, WA (USA)
• DOE Contract Number: AC06-87RL10930
• OSTI ID: 5784263
• Report Number(s): HEDL-7641; ON: DE89016058
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

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EVALUATION
HIGH-LEVEL RADIOACTIVE WASTES
UNDERGROUND DISPOSAL
COPPER ALLOYS
CORROSIVE EFFECTS
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STRESSES
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WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
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