Phase Equilibria Investigation of Binary, Ternary, and Higher Order Systems, Part VI - The Phase Equilibria in the Metal-Rich Region of the Hafnium-Tantalum-Nitrogen System

Item

Title
Phase Equilibria Investigation of Binary, Ternary, and Higher Order Systems, Part VI - The Phase Equilibria in the Metal-Rich Region of the Hafnium-Tantalum-Nitrogen System
Date
1969
Index Abstract
Not Available
Photo Quality
Complete
Report Number
AFML TR 69-117 Part 6
Creator
Booker, P. H.
Brukl, C. E.
Corporate Author
Aerojet-General Corporation
Laboratory
Air Force Materials Laboratory
Extent
86
Identifier
AD0700985
Access Rights
This document has been approved for public release and sale; its distribution is unlimited
Distribution Classification
1
Contract
F33615-67-C-1513
DoD Project
None Given
DoD Task
None Given
DTIC Record Exists
No
Distribution Change Authority Correspondence
None
Distribution Conflict
No
Abstract
The ternary alloy system tantalum-hafnium-nitrogen was investigated by means of melting point, X-ray, differential thermal analytical, and metallographic techniques. Also investigated were the two binary systems of tantalum-nitrogen and hafnium-nitrogen. In the ternary system, seven isothermal reactions occur: Three, Class II-type four-phase reactions and four limiting tie line reactions are observed. The observed phase relationships established during the course of this investigation are discussed, and isothermal sections from 1000C to 3200C as well as an isometric view of the ternary system are presented. In addition to the ternary system, phase diagrams for the two binary systems of tantalum-nitrogen and hafnium-nitrogen are also presented.
Report Availability
Full text available
Date Issued
1969-12
Provenance
Lockheed Martin Missiles & Fire Control
Type
report
Format
1 online resource
Media
AFMLTR69-117part06.pdf

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