Effect of sulfate ions on stress corrosion crack propagation in austenitic stainless steels under modified PWR primary conditions
Description
The effect of sulfate ions and dissolved oxygen on SCC propagation in austenitic stainless steels was studied under modified PWR primary water conditions. Type 304 Stainless Steel (304SS) was used in this study. Sheet specimens were prepared by cold rolling. After the cold rolling, solution heat treatment was conducted at 1060degC. Then sensitization treatment was carried out at 650degC for 24 hours for a fraction of them. The SCC propagation rate was investigated using the WOL test method in 500ppm B and 2ppm Li at 240degC. Stress intensity factor was 30MPa. Test duraton was 500 hours. The concentration of dissolved oxygen was changed from <0.01 to 8ppm. The effect of SO4 ions was investigated by controlling from <0.05 to 1ppm. For sensitized Type 304SS, the SCC propagation rate increased with the concentration of dissolved oxygen and increased with the concentration of sulfate ions. For solution heat treated Type 304SS, the SCC propagation rate was lower than that for sensitized Type 304SS, and independent of the concentration of sulfate ions. (author)
Additional details
Publishing Information
- Imprint Title
- The thermal and nuclear power generation convention 2010 Tokyo
- Imprint Pagination
- 269 p.
- Journal Page Range
- p. 119-123
Conference
- Title
- The thermal and nuclear power generation convention 2010 Tokyo
- Dates
- 13-15 Oct 2010
- Place
- Tokyo (Japan)
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 43049902
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Conference, Non-conventional Literature
- Descriptors DEI
- BORON; CRACK PROPAGATION; DISSOLVED GASES; LITHIUM; OXYGEN; PWR TYPE REACTORS; STAINLESS STEEL-304; STRESS CORROSION; STRESS INTENSITY FACTORS; SULFATES; WATER CHEMISTRY
- Descriptors DEC
- ALKALI METALS; ALLOYS; AUSTENITIC STEELS; CARBON ADDITIONS; CHEMICAL REACTIONS; CHEMISTRY; CHROMIUM ALLOYS; CHROMIUM-NICKEL STEELS; CORROSION; CORROSION RESISTANT ALLOYS; ELEMENTS; ENRICHED URANIUM REACTORS; FLUIDS; GASES; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; MATERIALS; METALS; NICKEL ALLOYS; NONMETALS; OXYGEN COMPOUNDS; POWER REACTORS; REACTORS; SEMIMETALS; SOLUTES; STAINLESS STEELS; STEEL-CR19NI10; STEELS; SULFUR COMPOUNDS; THERMAL REACTORS; TRANSITION ELEMENT ALLOYS; WATER COOLED REACTORS; WATER MODERATED REACTORS
Optional Information
- Notes
- Available as CD-ROM Data in PDF format, Folder Name: pdf, Paper ID: 203.pdf; 7 refs., 3 figs., 2 tabs.