The segregation of antimony to grain boundaries in iron base alloys and the causes of its enhancement by the presence of certain alloying elements
Journal Article
·
· Acta Metall.; (United States)
This paper presents a study of antimony segregation in iron and its alloys. Fe-Sb binaries, Fe-Ni-Sb ternaries, and Fe-Ni-Cr-C-Sb steels are examined. The results show that nickel clearly enhances antimony segregation as had previously been thought. Additions of chromium to Fe-Ni alloy cause an additional enhancement of segregation but additions of manganese almost entirely eliminat antimony segregation by causing the precipitation of an antimonide in the matrix. It will be shown that all of these results can be explained by simple thermodynamic concepts. Previous models which suggest that enhanced segregation arises from attractive interactions between antimony and various alloyin elements, appear to be inadequate to explain these results.
- Research Organization:
- General Electric Corporate Research and Development, Schenectady, NY
- OSTI ID:
- 6129740
- Journal Information:
- Acta Metall.; (United States), Journal Name: Acta Metall.; (United States) Vol. 32:11; ISSN AMETA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ALLOY SYSTEMS
ALLOYS
ANTIMONY
ANTIMONY ALLOYS
BINARY ALLOY SYSTEMS
CARBON STEELS
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHROMIUM ALLOYS
CRYSTAL STRUCTURE
ELEMENTS
GRAIN BOUNDARIES
IRON ALLOYS
IRON BASE ALLOYS
KINETICS
MANGANESE
METALLURGICAL EFFECTS
METALS
MICROSTRUCTURE
NICKEL ALLOYS
PNICTIDES
REACTION KINETICS
SEGREGATION
STEELS
TERNARY ALLOY SYSTEMS
THERMODYNAMICS
TRANSITION ELEMENTS
360101* -- Metals & Alloys-- Preparation & Fabrication
ALLOY SYSTEMS
ALLOYS
ANTIMONY
ANTIMONY ALLOYS
BINARY ALLOY SYSTEMS
CARBON STEELS
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHROMIUM ALLOYS
CRYSTAL STRUCTURE
ELEMENTS
GRAIN BOUNDARIES
IRON ALLOYS
IRON BASE ALLOYS
KINETICS
MANGANESE
METALLURGICAL EFFECTS
METALS
MICROSTRUCTURE
NICKEL ALLOYS
PNICTIDES
REACTION KINETICS
SEGREGATION
STEELS
TERNARY ALLOY SYSTEMS
THERMODYNAMICS
TRANSITION ELEMENTS