Interfacial precipitation, segregation and deformation in alloy 600: Implications on primary-side IGSCC

Conference · Thu Apr 01 04:00:00 EST 1993

OSTI ID:6543482

Bruemmer, S M

A great many unknowns still exist concerning the mechanisms controlling intergranular stress corrosion cracking (IGSCC) of alloy 600 in high-temperature, deaerated water environments. Any proposed mechanism must involve the microstructure, microchemistry and mechanical properties of grain boundary regions. To facilitate basic understanding, specific aspects of alloy 600 metallurgy are reviewed and discussed. Interfacial carbide precipitation, chromium depletion, impurity segregation and local deformation characteristics are examined and related to IGSCC behavior. Purpose of this paper is to provide information, and prompt discussion, on these various issues for the EPRI Alloy 600 Experts Meeting.

• Research Organization: Pacific Northwest Lab., Richland, WA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6543482
• Report Number(s): PNL-SA-22257; CONF-9304146--1; ON: DE93013161
• Country of Publication: United States
• Language: English

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ALLOY-NI76CR15FE8
ALLOYS
ALUMINIUM ADDITIONS
ALUMINIUM ALLOYS
BOILERS
CARBIDES
CARBON COMPOUNDS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CORROSION
CORROSION RESISTANT ALLOYS
CRACKS
CRYSTAL STRUCTURE
DEFORMATION
GRAIN BOUNDARIES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INCONEL 600
INCONEL ALLOYS
INTERFACES
INTERGRANULAR CORROSION
IRON ALLOYS
MATERIALS
METALLURGY
MICROSTRUCTURE
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIMONIC
SEGREGATION
STEAM GENERATORS
STRESS CORROSION
TITANIU
TITANIUM ADDITIONS
VAPOR GENERATORS