The goal of the Contrails project is to help preserve and disseminate the technical record of 20th century aerospace research, highlighting in particular the research endeavors of the Illinois Tech community.

Research On Workable Refractory Alloys Of Tungsten, Tantalum, Molybdenum, And Columbium

Report Number: WADD TR 61-134 Part 2
Author: Westgren, R. C.
Author: Thompson, V. R.
Author: Petersen, V. C.
Corporate Author: Crucible Steel Company Of America
Laboratory: Directorate of Materials and Processes
Date of Publication: 1963-04
Pages: 107
Contract: AF 33(616)-8135
Project: 7351 - Metallic Materials
Task: 735101
AD Number: AD0407690

Under a previous contract, the W-Ta-Mo-Cb alloy system was investigated, and several tungsten- and tantalum-rich alloys were developed and evaluated in the form of extruded bars. Many of these alloys exhibited very high strengths at 3000°F; in fact, the tensile strengths of some alloys were in excess of 60,000 psi. The present work was a continuation of this effort and was aimed at producing and evaluating alloys from the W-Ta-Mo-Cb system in the form of sheet (Phase I) and increasing its high-temperature strength by the formation of dispersed carbides (Phase II).

For Phase I, small cylindrical ingots of six selected alloys and unalloyed tungsten were consumably vacuum arc-melted by a multiple electrode technique and successfully extruded to sheet bars. Two alloys and unalloyed tungsten were rolled to sheet and recrystallization temperatures, bend transition temperatures, and high- temperature tensile properties were determined. The other four alloys could not be rolled to sheet by the techniques attempted in this program.

Experiments under Phase II resulted in the development of a successful technique for consumably vacuum arc melting 88W-12Cb alloys that contained small amounts of vanadium, zirconium, and carbon. These alloys showed 3500°F tensile strengths at 49,000 to 57,000 psi--this constituted a twofold increase in strength above that of the base solid solution composition.

Lockheed Martin Missiles & Fire Control
This report has yet to be scanned by Contrails staff

Request scanning of this report

Other options for obtaining this report

Via the Defense Technical Information Center (DTIC):
A record for this report, and possibly a full-image download of the report, exists at DTIC

Via National Technical Information Service:
This report may have been digitized and made freely available for public download, or made publicly available for purchase by the National Technical Information Service through their online database, the National Technical Reports Library

Indications of Public Availability
No digital image of an index entry indicating public availability is currently available
The inside cover of this report indicates that it was released for public sale

Related Reports

This report has the following parts/volumes: