Kinetics of the martensitic f. c. c. -->. h. c. p. transformation in Co-Cr-Mo alloy powders
Journal Article
·
· Acta Metall.; (United States)
The kinetics of isothermal martensitic nucleation in Co-Cr-Mo alloy powders is monitored. It is shown that a linear relation exists between the activation energy for martensite formation and the chemical free energy for the f.c.c...-->..h.c.p. transition. The nucleation kinetics is governed by the thermally activated motion of partial dislocations and the interaction between the Shockley partials and short range obstacles (stacking faults intersections and solute clusters).
- Research Organization:
- National Aeronautical Establishment, National Research Council Canada, Ottawa, Ontario
- OSTI ID:
- 6070142
- Journal Information:
- Acta Metall.; (United States), Journal Name: Acta Metall.; (United States) Vol. 32:9; ISSN AMETA
- Country of Publication:
- United States
- Language:
- English
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· Acta Metall.; (United States)
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Thu Mar 31 23:00:00 EST 1994
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Related Subjects
36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ACTIVATION ENERGY
ALLOYS
CARBON ADDITIONS
CHEMICAL REACTION KINETICS
CHROMIUM ALLOYS
COBALT ALLOYS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
CUBIC LATTICES
ENERGY
FCC LATTICES
FREE ENERGY
HCP LATTICES
HEXAGONAL LATTICES
IRON ALLOYS
ISOTHERMAL PROCESSES
KINETICS
MARTENSITE
MOLYBDENUM ALLOYS
NUCLEATION
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
POWDERS
REACTION KINETICS
THERMODYNAMIC PROPERTIES
360102* -- Metals & Alloys-- Structure & Phase Studies
ACTIVATION ENERGY
ALLOYS
CARBON ADDITIONS
CHEMICAL REACTION KINETICS
CHROMIUM ALLOYS
COBALT ALLOYS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
CUBIC LATTICES
ENERGY
FCC LATTICES
FREE ENERGY
HCP LATTICES
HEXAGONAL LATTICES
IRON ALLOYS
ISOTHERMAL PROCESSES
KINETICS
MARTENSITE
MOLYBDENUM ALLOYS
NUCLEATION
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
POWDERS
REACTION KINETICS
THERMODYNAMIC PROPERTIES