Development and Evaluation of High-Temperature Tungsten Alloys: Quarterly Report Number 2, January - March 1960 Page: 1
[17] p. : ill., tables ; 28 cm.View a full description of this report.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
I
0
■j/r
Official Us* Only
DEVELOPMENT AND EVALUATION
OF HIGH-TEMPERATURE TUNGSTEN ALLOYS
1. INTRODUCTION
THU progress report covert the period January l, I960, to March 3t,
1960, summarising work performed on AJKF Project 21 *8, "Development and
Evaluation of High-Temperauir* Tungeten Alloys" (title unclassified).
This program hat at ita objectives the development of high-tungsten
alloys which are readily fabncable and which possess adequate strength and
stability for use at temperatures up to 2000*F, Oxidation protection is also
under consideration. The materials under study have been prepared by powder
metallurgy techniques.
Earlier efforts under this program hays indicated that alloys based
on the W-Ni-Fe system satisfy most of the requirements for fabricability and
elevated-temperature service. A number of quaternary additions have been
made to the W-Ni-Fe base for the purpose of increasing high-temperature
strength. Moderate improvements were noted previously for additions of
cobalt and molybdenum, and substantial increases were obtained by the ad*
dition of 1 to 2 wt% ruthenium to a 90 wt% W-Ni-Fc base. Consequently, a
major portion of efforts during the current reporting interval was devoted to
alloys based on the W-Ni-Fe-Ru system. In addition, a number of processing
techniques were studied in order to determine the feasibility of producing Urge
and complex shapes. Oxidation of various tungsten-base alloys was measured
at 2000*F and at lower temperatures, and protective coatings were tested at
temperatures up to 2100* F. The property data reported herein, unless other-
wise specified, were obtained from specimens prepared by cold-pressing the
blended metal powders, followed by liquid-phase sintering in a reducing atmos-
phere or under vacuum.
AQMOUfi BSStABCM fOUNO^TtON O * ILLINOIS I N S ll ? U T i Of t(CMN0lO6>
f*S ft
o
ARF 2158-18
* *
Upcoming Pages
Here’s what’s next.
Search Inside
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
Holtz, F. C. & Van Thyne, R. J. Development and Evaluation of High-Temperature Tungsten Alloys: Quarterly Report Number 2, January - March 1960, report, June 24, 1960; Chicago, Illinois. (https://digital.library.unt.edu/ark:/67531/metadc502432/m1/4/: accessed June 5, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.