Microstructure, microchemistry, and microdeformation of Alloy 600 tubing
Description
Microstructural and microchemical characterizations were performed on two heats of Alloy 600 tubing that have been shown to be susceptible to IGSCC in primary water environments. U-bend and straight section regions of one of the heats (Tube R1-C7 removed from Trojan steam generator D) were examined and compared. Microchemical differences were identified by analytical electron microscopy (AEM) and Auger electron spectroscopy (AES). Chromium concentrations were lower and phosphorus segregation higher in the U-bend region versus that in the straight section. While these differences were small, they appear to be statistically valid. Results suggest that microchemical changes can occur during service exposure and are accelerated by the presence of a heavily deformed microstructure
Additional details
Publishing Information
- Imprint Title
- Proceedings: 1985 workshop on primary-side stress corrosion cracking of PWR steam generator tubing
- Journal Page Range
- p. 15.1-15.19.
- Report number
- EPRI-NP--5158
Conference
- Title
- Workshop on primary-side stress corrosion cracking of PWR steam generator tubing.
- Dates
- 20-22 Mar 1985.
- Place
- San Diego, CA (USA).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19046272
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference, Numerical Data, Non-conventional Literature
- Descriptors DEI
- ALLOY-NI76CR15FE8; AUGER ELECTRON SPECTROSCOPY; BENDING; CARBIDES; CHEMICAL ANALYSIS; CRACKS; DEFORMATION; DISLOCATIONS; ELECTRON MICROSCOPY; EXPERIMENTAL DATA; MECHANICAL PROPERTIES; MICROSTRUCTURE; PRIMARY COOLANT CIRCUITS; PWR TYPE REACTORS; STEAM GENERATORS; STRESS CORROSION; TROJAN REACTOR; TUBES
- Descriptors DEC
- ALLOYS; ALUMINIUM ADDITIONS; BOILERS; CARBON COMPOUNDS; CHEMICAL REACTIONS; CHROMIUM ALLOYS; COOLING SYSTEMS; CORROSION; CORROSION RESISTANT ALLOYS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DATA; ELECTRON SPECTROSCOPY; ENRICHED URANIUM REACTORS; HEAT RESISTING ALLOYS; INCONEL ALLOYS; INFORMATION; IRON ALLOYS; LINE DEFECTS; MICROSCOPY; NICKEL ALLOYS; NICKEL BASE ALLOYS; NIMONIC; NUMERICAL DATA; POWER REACTORS; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS; REACTORS; SPECTROSCOPY; THERMAL REACTORS; TITANIUM ADDITIONS; VAPOR GENERATORS; WATER COOLED REACTORS; WATER MODERATED REACTORS