Accession Number:

ADA114187

Title:

Tungsten Alloy Fabrication of Penetrator Materials

Descriptive Note:

Final rept. Feb 1978-Apr 1980

Corporate Author:

GTE SYLVANIA INC TOWANDA PA CHEMICAL AND METALLURGICAL DIV

Personal Author(s):

• Spencer, James R.

Report Date:

1981-08-01

Pagination or Media Count:

69.0

Abstract:

Tungsten heavy alloy bars 1.35 inches in diameter were prepared and evaluated for uniformity of properties. Alloys contained 97.1 to 97.3 tungsten with primary emphasis on the 97.1W-1.6Ni-0.7Fe-0.5Cu-0.1Co composition. To achieve high uniform densities with this alloy, it was necessary to use fine tungsten powder approx 1-1.5 micrometers and slow heating rates between 1000 C and the sintering temperature. This was not necessary with similar alloys containing no copper. Tensile elongation was found to be strongly dependent on oxygen levels in the sintered bars. Low oxygen levels gave the best results with 16-17 elongation when oxygen levels were below 6 ppm. These very low oxygen levels were only achieved with alloys containing no copper.

Descriptors:

• *FABRICATION
• *HEAVY METALS
• *TUNGSTEN ALLOYS
• CHEMICAL COMPOSITION
• COBALT
• COPPER
• DEFECTS(MATERIALS)
• FRACTURE(MECHANICS)
• HARDNESS
• HEAT TREATMENT
• HIGH DENSITY
• HIGH TEMPERATURE
• IRON
• MECHANICAL PROPERTIES
• MICROSTRUCTURE
• NICKEL
• OXYGEN
• PENETRATION
• PHYSICAL PROPERTIES
• POWDER METALLURGY
• POWDERS
• SINTERING
• STRUCTURAL ANALYSIS
• TENSILE PROPERTIES
• TEST METHODS

Subject Categories:

• Properties of Metals and Alloys
• Fabrication Metallurgy
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE