Experimental and thermodynamic investigation of the Ni-Al-Mo system

Journal Article · Thu Jul 01 04:00:00 EDT 1999 · Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science

DOI:https://doi.org/10.1007/s11661-999-0177-7· OSTI ID:677987

Lu, X; Cui, Y; Jin, Z ^[1]

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1. Central South Univ. of Technology, Hunan (China). Dept. of Materials Science and Engineering

The diffusion triple and electron probe microanalysis (EPMA) techniques have been adopted to study the isothermal section of the Ni-Al-Mo system at 1373 K. Experimental data from present work and literature have been assessed to evaluate the thermodynamic parameters of the ternary system by means of the calculation of phase diagram (CALPHAD) method. A substitutional-solution model is used to describe liquid, fcc, and bcc phases, while a sublattice model is used to describe intermetallic phases. Two sets of thermodynamic descriptions have been obtained, and comparison has been made between them. Also, calculations of equilibrium-phase diagrams compared to the experimental data have been presented. There is good agreement between the calculations and the experimental data.

• Sponsoring Organization: USDOE
• OSTI ID: 677987
• Journal Information: Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, Journal Name: Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science Journal Issue: 7 Vol. 30; ISSN 1073-5623; ISSN MMTAEB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
PHASE DIAGRAMS
PHASE STUDIES
TEMPERATURE RANGE 1000-4000 K
THERMODYNAMIC MODEL
THERMODYNAMIC PROPERTIES
VALIDATION