Influence of grain boundary carbides and phosphorus segregation on the low-temperature intergranular embrittlement of type 316 stainless steelsteel

Journal Article · Fri Sep 01 00:00:00 EDT 1989 · Scripta Metallurgica; (USA)

DOI:https://doi.org/10.1016/0036-9748(89)90126-9· OSTI ID:6902684

Bruemmer, S M; Charlot, L A ^[1]; Bagchi, A; Atteridge, D G ^[2]

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1. Pacific Northwest Lab., Richland, WA (USA)
2. Oregon Graduate Center, Beaverton, OR (USA)

Grain boundary carbide precipitation controls low-temperature impact properties. Carbide coverages of about 50% or more along grain boundaries promote intergranular embrittlement at {minus} 196{degrees}C. Phosphorus segregation (up to 10% of a monolayer) did not induce intergranular fracture without carbides or significantly increase embrittlement when carbides were present. Carbide/matrix interfaces appear to be inherently weak and susceptible to embrittlement at {minus} 196{degrees}C without impurity segregation.

• DOE Contract Number: AC06-86NE37963
• OSTI ID: 6902684
• Journal Information: Scripta Metallurgica; (USA), Journal Name: Scripta Metallurgica; (USA) Vol. 23:9; ISSN 0036-9748; ISSN SCRMB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
AUSTENITIC STEELS
CARBIDES
CARBON COMPOUNDS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
CHROMIUM-NICKEL-MOLYBDENUM STEELS
CORROSION
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
ELEMENTS
EMBRITTLEMENT
FRACTURE PROPERTIES
GRAIN BOUNDARIES
HEAT RESIS
HIGH ALLOY STEELS
IMPACT STRENGTH
INTERFACES
INTERGRANULAR CORROSION
IRON ALLOYS
IRON BASE ALLOYS
LOW TEMPERATURE
MECHANICAL PROPERTIES
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NONMETALS
PHOSPHORUS
PRECIPITATION
SEPARATION PROCESSES
STAINLESS STEEL-316
STAINLESS STEELS
STEEL-CR17NI12MO3
STEELS