TUNGSTEN BASE ALLOYS

Patent · Tue Dec 15 04:00:00 EST 1959

OSTI ID:4195240

Schell, D H; Sheinberg, H

A high-density quaternary tungsten-base alloy having high mechanical strength and good machinability composed of about 2 wt.% Ni, 3 wt.% Cu, 5 wt.% Pb, and 90wt.% W is described. This alloy can be formed by the powder metallurgy technique of hot pressing in a graphite die without causing a reaction between charge and the die and without formation of a carbide case on the final compact, thereby enabling re-use of the graphite die. The alloy is formable at hot- pressing temperatures of from about 1200 to about 1350 deg C. In addition, there is little component shrinkage, thereby eliminating the necessity of subsequent extensive surface machining.

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-14-007832
• Assignee: U.S. Atomic Energy Commission
• Patent Number(s): US 2916809
• OSTI ID: 4195240
• Country of Publication: United States
• Language: English

Related Subjects

COPPER ALLOYS
DEFORMATION
DENSITY
DIES
GRAPHITE
HIGH TEMPERATURE
HOT WORKING
LEAD ALLOYS
MACHINING
MECHANICAL PROPERTIES
METALS, CERAMICS, AND MATERIALS
NICKEL ALLOYS
POWDER METALLURGY
PRESSURE
SHRINKAGE
SURFACES
TENSILE PROPERTIES
TUNGSTEN ALLOYS
VOLUME