An experimental study and a thermodynamic evaluation of the Fe-Cr-Mo system

Journal Article · Wed Jun 01 04:00:00 EDT 1988 · Metall. Trans., A; (United States)

DOI:https://doi.org/10.1007/BF02674012· OSTI ID:6887588

Anderson, J O; Lange, N

An experimental study of the Fe-Cr-Mo system has been made using a diffusion couple technique. Both ends of a large number of tie-lines have been determined using both an electron microprobe and a scanning electron microscope with energy dispersive X-ray analysis equipment. The isothermal sections at 1223, 1273, 1373, and 1473 K have been constructed from the experimental data and thermodynamic model calculations. The Gibbs energy of the intermetallic phases has been described with a recently developed model for phases with several sublattices. The parameter values describing the Gibbs energy of each individual phase were determined with a computerized optimization technique. The calculated phase diagrams are in satisfactory agreement with the experimental information and allow reasonable extrapolation outside the experimental temperature range.

• Research Organization: National Bureau of Standards, Gaithersburg, MD (US)
• OSTI ID: 6887588
• Journal Information: Metall. Trans., A; (United States), Journal Name: Metall. Trans., A; (United States) Vol. 19A:6; ISSN MTTAB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ALLOY SYSTEMS
ALLOYS
CHROMIUM ALLOYS
COHERENT SCATTERING
COMPUTER CALCULATIONS
CRYSTAL STRUCTURE
DATA
DIAGRAMS
DIFFRACTION
DIFFUSION
ELECTRON MICROSCOPY
EXPERIMENTAL DATA
INFORMATION
IRON ALLOYS
MICROSCOPY
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NUMERICAL DATA
OPTIMIZATION
PARAMETRIC ANALYSIS
PHASE DIAGRAMS
SCATTERING
TERNARY ALLOY SYSTEMS
THERMODYNAMICS
X-RAY DIFFRACTION