Accession Number : AD0480017

Title :   ARC MELTING, WORKING AND PROPERTIES OF TUNGSTEN + 0.6 COLUMBIUM ALLOY.

Descriptive Note : Summary rept.,

Corporate Author : AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OH

Personal Author(s) : Inouye, Shingo ; Saul, George

Report Date : JAN 1966

Pagination or Media Count : 25

Abstract : Influence of small additions of carbon, oxygen, titanium and zirconium in tungsten +0.6% columbium alloy were studied. Arc melting, extrusion, forging, and swaging behavior are described. Elevated temperature tensile strength was correlated with annealing response of various wrought forms. Titanium and oxygen additions coarsened the cast structure and lowered the 3000 F tensile strength of the base composition. Zirconium increased 3000 F ultimate tensile strength approximately 10,000 psi in the swaged condition and 4000 psi in the fully annealed condition. (Author)

Descriptors :   (*TUNGSTEN ALLOYS, MATERIAL FORMING), NIOBIUM ALLOYS, MELTING, EXTRUSION, FORGING, ANNEALING, TENSILE PROPERTIES, ADDITIVES, CARBON, OXYGEN, TITANIUM, ZIRCONIUM, GRAIN STRUCTURES(METALLURGY), ELECTRIC ARCS, VACUUM FURNACES, MICROSTRUCTURE, RECRYSTALLIZATION, HARDNESS, ARC MELTING.

Subject Categories : Properties of Metals and Alloys
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE