Accession Number : AD0487622

Title :   TERNARY PHASE EQUILIBRIA IN TRANSITION METAL-BORON-CARBON-SILICON SYSTEMS. PART II. TERNARY SYSTEMS. VOLUME VIII. TA-W-C SYSTEM.

Descriptive Note : Technical rept.,

Corporate Author : AEROJET-GENERAL CORP SACRAMENTO CA MATERIALS RESEARCH LAB

Personal Author(s) : Rudy, E.

Report Date : SEP 1966

Pagination or Media Count : 141

Abstract : The ternary alloy system Ta-W-C has been investigated by means of X-rays, metallographic, melting point, and differentila-thermoanalytical techniques, and a complete phase diagram was established. Thermodynamic approaches for the interpretation and prediction of ternary alloy systems are briefly discussed and applied to the tantalumtungsten-carbon system. The thermodynamic data obtained from an evaluation of the system sections are compatible with previous values obtained from other carbide systems, and the calculated temperature sections and isopleths are in good agreement with the experimental observations. The results of this investigation are discussed and possible fields of applications outlined. (Author)

Descriptors :   *TRANSITION METALS), (*PHASE STUDIES, (*TANTALUM ALLOYS, PHASE STUDIES), BORON, CARBON, SILICON, TUNGSTEN ALLOYS, CARBON ALLOYS, X RAY DIFFRACTION, METALLOGRAPHY, MELTING POINT, THERMODYNAMICS, DIFFERENTIAL THERMAL ANALYSIS, CHEMICAL EQUILIBRIUM.

Subject Categories : Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE