Grain boundary chemistry effects on irradiation-assisted stress corrosion cracking

Conference · Wed Feb 28 23:00:00 EST 1990

OSTI ID:7198571

Bruemmer, S. M.; Charlot, L. A.; Simonen, E. P.

Radiation-induced segregation (RIS) to grain boundaries and interfacial microchemistry effects on intergranular stress corrosion cracking (IGSCC) has been investigated in 304 and 316 stainless steels (SS). Irradiation dose effects on RIS to grain boundaries were studied using nickel ion bombardment of fine-grained, sputter-deposited SS. Grain boundary chemistry effects on the intergranular (IG) corrosion and stress corrosion cracking (SCC) were examined by varying phosphorus segregation and chromium depletion through controlled thermal treatments. Grain boundary enrichment of phosphorus was found to promote IG corrosion, but not SCC, of 316 SS in low-temperature, sulfuric acid solutions at transpassive potentials. 29 refs., 8 figs.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• Sponsoring Organization: DOE/ER; EPRI
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 7198571
• Report Number(s): PNL-SA-17601; CONF-900403--9; ON: DE90008623
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
360106 -- Metals & Alloys-- Radiation Effects
ALLOYS
AUSTENITIC STEELS
CHEMICAL REACTIONS
CHROMIUM
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
CHROMIUM-NICKEL-MOLYBDENUM STEELS
CORROSION
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
ELEMENTS
GRAIN BOUNDARIES
HEAT RESIS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
INTERGRANULAR CORROSION
IRON ALLOYS
IRON BASE ALLOYS
IRRADIATION
MATERIALS
METALS
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NONMETALS
PHOSPHORUS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SEGREGATION
SPUTTERING
STAINLESS STEEL-304
STAINLESS STEEL-316
STAINLESS STEELS
STEEL-CR17NI12MO3
STEEL-CR19NI10
STEELS
STRESS CORROSION
TRANSITION ELEMENTS