General and localized corrosion of carbon and low-alloy steels in oxygenated high-temperature water. Final report. [BWR]

Technical Report · Tue Feb 01 00:00:00 EST 1983

OSTI ID:6504626

Macdonald, D D; Smialowska, S; Pednekar, S

The susceptibilities to stress corrosion cracking (SCC) of two carbon steels, SA106-grB and SA333-gr6, which are used in seamless BWR piping, and a low-alloy pressure vessel steel, A508-C12, were studied in high purity water as a function of oxygen concentration (0.16 to 8 ppM) and temperature (50 to 288/sup 0/C) . The susceptibility to SCC was measured using the slow strain rate technique. The fracture surfaces of the test specimens were also examined using SEM to determine the mode of failure. In water containing 1 and 8 ppM oxygen and at temperatures above 135/sup 0/C, transgranular stress corrosion cracking (TGSCC) was observed to occur in A508-C12, SA333-gr6 and SA106grB steels at very high stresses. The susceptibility to SCC increased with temperature.

• Research Organization: Ohio State Univ., Columbus (USA). Dept. of Metallurgical Engineering
• OSTI ID: 6504626
• Report Number(s): EPRI-NP-2853; ON: DE83901488
• Resource Relation: Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

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