Determination and verification of required water chemistry limits. Volume 2. Isothermal capsule testing. Final report
Four series of high temperature (560/sup 0/F), isothermal capsule tests were performed in order to quantitatively measure and assess the corrosion behavior of various current and new steam generator materials in potentially aggressive environments. Alloy 600 capsules coupled to AISI 1018 carbon steel, A-508 low alloy steel or Types 405 and 409 stainless steels were used for these tests. The chemical environments selected simulated those which could occur within a steam generator following instances to condenser inleakage from three broad categories of cooling waters (acid forming - sea/brackish waters, neutral to caustic forming - fresh waters and cooling tower treated fresh water). Results of testing indicate: Pitting was the predominant type of corrosion for Alloy 600, A-508 low alloy steel, AISI 1018 carbon steel and Types 405, 409 stainless steel. AISI 1018 carbon steel experienced nonprotective magnetite formation in an acid chloride (0.2 M MgC1/sub 2/) environment. Non-protective magnetite formation was not experienced at 0.01 M MgC1/sub 2/. Type 409 stainless steel was found to be susceptible to intergranular attack in two of the environments tested (0.1 M SiO/sub 2/ plus 0.1 M NaC1, and cincentrated (10X) Arkansas cooling tower water pre-acidified to pH 6.5 with H/sub 2/SO/sub 4/). Type 405 stainless steel was not similarly affected. A-508 Class 2 low alloy steel demonstrated the greatest propensity for pitting followed by Type 405 stainless steel, AISI 1018 carbon steel and Type 409 stainless steel.
- Research Organization:
- Combustion Engineering, Inc., Windsor, CT (USA). Nuclear Power Systems
- OSTI ID:
- 6594538
- Report Number(s):
- EPRI-NP-3274-Vol.2; ON: TI85920016
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
CARBON STEELS
CORROSION
INCONEL 600
PWR TYPE REACTORS
STEAM GENERATORS
STAINLESS STEELS
MATERIALS TESTING
STEEL-ASTM-A508
AQUEOUS SOLUTIONS
HIGH TEMPERATURE
MAGNESIUM CHLORIDES
MAGNESIUM SULFATES
PITTING CORROSION
SCALING
SEAWATER
SILICA
SODIUM CHLORIDES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
BOILERS
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
DISPERSIONS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INCONEL ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
MAGNESIUM COMPOUNDS
MINERALS
MIXTURES
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
REACTORS
SILICON COMPOUNDS
SILICON OXIDES
SODIUM COMPOUNDS
SOLUTIONS
STEELS
SULFATES
SULFUR COMPOUNDS
TESTING
VAPOR GENERATORS
WATER
WATER COOLED REACTORS
WATER MODERATED REACTORS
210200* - Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
360105 - Metals & Alloys- Corrosion & Erosion