Equilibrium grain boundary segregation of phosphorus in 2. 6Cr-0. 7Mo-0. 3V steels
Journal Article
·
· Acta Metallurgica et Materialia; (United States)
- Slovak Academy of Sciences, Kosice (Slovakia). Inst. of Materials Research
- State Inst. of Materials Research, Prague (Czech Republic)
The equilibrium grain boundary segregation of phosphorus in two 2.6Cr-0.7Mo-0.3V steels with 0.06 and 0.005 Wt% of C tempered at 823, 853 and 913 K was investigated. Auger electron spectroscopy was used to establish the grain boundary concentrations of the P, C, Cr, Mo and V. Chemical compositions of the carbides were determined by means of EDX/STEM. The standard McLean's theory and Guttmann's theory of co-segregation were used to analyze the experimental data. The values of [Delta]H[sub P], [Delta]H[sub Mo], [Delta]G[sub P][sup 0], Delta G[sub Mo][sup 0], and [alpha][sub MoP] were calculated. The value of interaction coefficient calculated according to Guttmann's theory is low to suppose the influence of molybdenum upon the P segregation. The more expressive changes in the grain boundary concentrations of P and C in relation in tempering temperature were found out in the steel with lower C content.
- OSTI ID:
- 6636895
- Journal Information:
- Acta Metallurgica et Materialia; (United States), Journal Name: Acta Metallurgica et Materialia; (United States) Vol. 43:1; ISSN 0956-7151; ISSN AMATEB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
360104 -- Metals & Alloys-- Physical Properties
ALLOYS
CARBON ADDITIONS
CHROMIUM ALLOYS
COPPER ADDITIONS
COPPER ALLOYS
DATA
ELEMENTS
EXPERIMENTAL DATA
GRAIN BOUNDARIES
HEAT TREATMENTS
IMPURITIES
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
LOW ALLOY STEELS
METALLURGICAL EFFECTS
MICROSTRUCTURE
MOLYBDENUM ADDITIONS
MOLYBDENUM ALLOYS
NICKEL ADDITIONS
NICKEL ALLOYS
NONMETALS
NUMERICAL DATA
PHOSPHORUS
PHYSICAL PROPERTIES
SEGREGATION
STEEL-CRMOV
STEELS
TEMPERING
THERMODYNAMIC PROPERTIES
VANADIUM ADDITIONS
VANADIUM ALLOYS
360102* -- Metals & Alloys-- Structure & Phase Studies
360104 -- Metals & Alloys-- Physical Properties
ALLOYS
CARBON ADDITIONS
CHROMIUM ALLOYS
COPPER ADDITIONS
COPPER ALLOYS
DATA
ELEMENTS
EXPERIMENTAL DATA
GRAIN BOUNDARIES
HEAT TREATMENTS
IMPURITIES
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
LOW ALLOY STEELS
METALLURGICAL EFFECTS
MICROSTRUCTURE
MOLYBDENUM ADDITIONS
MOLYBDENUM ALLOYS
NICKEL ADDITIONS
NICKEL ALLOYS
NONMETALS
NUMERICAL DATA
PHOSPHORUS
PHYSICAL PROPERTIES
SEGREGATION
STEEL-CRMOV
STEELS
TEMPERING
THERMODYNAMIC PROPERTIES
VANADIUM ADDITIONS
VANADIUM ALLOYS