Research on corrosion resistance of steam generator tube
- 1. Mitsubishi Heavy Industries Ltd., Kobe (Japan). Kobe Shipyard and Machinery Works
Description
In order to improve the reliability of PWR steam generators, we have performed research to improve the tubing material and tube-support-plate configuration, based on our wide operating experience, and have developed and verified Alloy TT690 as the optimum tubing material and the BEC (Broached Egg Crate) type tube-support design. In the research, we have studied the metallurgical mechanism of the alloy to improve its corrosion resistance, evaluated corrosion susceptible region quantitatively, estimated the actual environment in a steam generator and confirmed the reliability by a model boiler test over a long period. It has been verified that the steam generator with the latest design has higher reliability with respect to the corrosion resistance of tubes. (author)
Additional details
Publishing Information
- Journal Title
- Mitsubishi Juko Giho
- Journal Volume
- 32
- Journal Issue
- 3
- Journal Page Range
- p. 161-164.
- ISSN
- 0387-2432
- CODEN
- MIJGAF
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 27002246
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- ANNEALING; CRACKS; DECARBURIZATION; INCONEL 690; METALLURGICAL EFFECTS; PWR TYPE REACTORS; RELIABILITY; SHAPE; SPECIFICATIONS; STEAM GENERATORS; STRESS CORROSION; SUPPORTS
- Descriptors DEC
- ALLOY-NI59CR30FE9; ALLOYS; BOILERS; CHEMICAL REACTIONS; CHROMIUM ALLOYS; CORROSION; CORROSION RESISTANT ALLOYS; ENRICHED URANIUM REACTORS; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; HEAT TREATMENTS; INCONEL ALLOYS; IRON ALLOYS; MATERIALS; MECHANICAL STRUCTURES; NICKEL ALLOYS; NICKEL BASE ALLOYS; POWER REACTORS; REACTORS; THERMAL REACTORS; TITANIUM ADDITIONS; TRANSITION ELEMENT ALLOYS; VAPOR GENERATORS; WATER COOLED REACTORS; WATER MODERATED REACTORS