TERNARY PHASE EQUILIBRIA IN TRANSITION METAL-BORON-CARBON-SILICON SYSTEMS. PART 4. THERMOCHEMICAL CALCULATIONS, VOLUME 3. COMPUTATIONAL APPROACH TO THE CALCULATION OF TERNARY PHASE DIAGRAMS

Abstract

The general conditional equations which govern the phase equilibria in three-component systems are presented. Using the general conditional equations, a general method has been developed to precalculate the phase equilibria in three-component systems from first principle using computer technique. The method developed has been applied to several model examples and the system Ta-Hf-C. The phase equilibria in three-component systems calculated using the simplified method as originally developed by Rudy, agree well with those calculated by the present method. The only difference is in the homogeneous range with respect to the interstitial component of solid solutions which exhibit large variation with metal exchange. This is to be expected in view of the assumptions made in the simplified method.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1966
Accession Number
AD0803914

Entities

People

  • Y. A. Chang

Organizations

  • Aerojet Rocketdyne Holdings

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Boundaries
  • Computer Programs
  • Computers
  • Contracts
  • Diagrams
  • Energy
  • Free Energy
  • High Temperature
  • Materials
  • Materials Laboratories
  • Mathematical Analysis
  • Metals
  • Phase Diagrams
  • Thermodynamic Properties
  • Three Dimensional
  • Transition Metals

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  • Calculus or Mathematical Analysis
  • Materials Science and Engineering.