Resistant does not equal immune
- Radian International LLC, Austin, TX (United States)
- Jacksonville Electric Authority, FL (United States)
In the Fall of 1993, after less than two years of service, leaking tubes were detected in Feedwater Heater No. 2 at Jacksonville Electric Authority`s (JEA) Northside Generating Station (NS), Unit 3. During an outage in the Fall of 1994, indications were found in 93 of the feedwater heater tubes during eddy current inspection. Tubes from the initial leak incident and tubes with eddy current indications were analyzed by several laboratories. The cracking was concluded to be due to chloride-induced stress corrosion cracking (SCC). While 6% molybdenum alloys and other super austenitic stainless steels are highly resistant to chloride-induced SCC, they are not immune to this failure mode. This paper discusses the analyses that led to the determination of chloride-induced SCC as the failure mode.
- OSTI ID:
- 549938
- Report Number(s):
- CONF-961006-; ISBN 0-7918-1796-2; TRN: IM9753%%13
- Resource Relation:
- Conference: 1996 international joint power generation conference, Houston, TX (United States), 13-17 Oct 1996; Other Information: PBD: 1996; Related Information: Is Part Of 1996 international joint power generation conference: Proceedings. Volume 2; PWR-Volume 30; Kielasa, L. [ed.] [Detroit Edison Co., MI (United States)]; Weed, G.E. [ed.] [Eastman Kodak Co., Rochester, NY (United States)]; PB: 936 p.
- Country of Publication:
- United States
- Language:
- English
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