Accession Number:

AD0475018

Title:

TERNARY PHASE EQUILIBRIA IN TRANSITION METAL-BORON-CARBON-SILICON SYSTEMS. PART 2. TERNARY SYSTEMS. VOLUME 2. TI-TA-C SYSTEM

Descriptive Note:

Technical rept.

Corporate Author:

AEROJET-GENERAL CORP SACRAMENTO CA

Personal Author(s):

• Brukl, C. E.
• Harmon, D. P.

Report Date:

1965-10-01

Pagination or Media Count:

83.0

Abstract:

The ternary titanium-tantalum- carbon system was investigated using X-ray, DTA, melting point, and metallographic techniques on chemically analyzed alloys a complete phase diagram for temperatures above 1500 C was established. The system contains a rather high melting, continuous monocarbide solid solution with a large carbon defect a moderate titanium-tantalum exchange occurs in both the high and low temperature modifications of the subcarbide, Ta2C. Two four- phase reaction planes are present in the metal-rich portion of the ternary diagram. The results of this investigation are described, discussed, and compared with another partial investigation of this system possible applications are briefly mentioned. .

Descriptors:

• *CARBIDES
• *PHASE STUDIES
• CHEMICAL ANALYSIS
• DIFFERENTIAL THERMAL ANALYSIS
• HIGH TEMPERATURE
• MELTING POINT
• METALLOGRAPHY
• SOLID SOLUTIONS
• TANTALUM ALLOYS
• TITANIUM ALLOYS
• TRANSITION METALS
• X RAY DIFFRACTION

Subject Categories:

• Physical Chemistry
• Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE