DEVELOPMENT OF TUNGSTEN-BASE ALLOYS. Final Report covering Period June 1958-December 1960
Technical Report
·
OSTI ID:4031225
Results are presented of a preliminary evaluation of arc cast, tugsten- rich binary alloys containing various quantities of Al, Cr, Co, Nb, Hf, Fe, Ni Si, Ta, V, or Zr. The studies were conducted primarily on as-cast materials. Areas of special interest included relations between room and elevated temperature hardness versus alloy composition, characteristics of macro- and microstructures as a function of alloy composition, and solid solubility limits. Other activity was devoted to determination of alloy composition effects on lattice parameter and oxidation, and assessment of worksbility as function of alloy composition, Graded-composition ingots were prepared for the experimental program by consumable arc melting of preformed W electrodes while adding the second alloying element by means of a supplementmy feeding system. Uniformcomposition ingots were also used and were cast in a press-sinter-melt apparatus in which blended charges of metal powders were compacted into an electrode which was sintered to increase its strength, then arc-melted in a water- cooled mold. Charts are included which illustrate the effects of alloy additions on the lattice parameter, hardness, and oxidation resistance of these alloys. (J.R.D.)
- Research Organization:
- Climax Molybdenum Co. of Michigan. Research Lab., Detroit
- NSA Number:
- NSA-15-023957
- OSTI ID:
- 4031225
- Report Number(s):
- NP-10341
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINUM ALLOYS
CASTING
CHROMIUM ALLOYS
COBALT ALLOYS
COMPACTING
COOLING
ELECTRIC ARCS
ELECTRODES
HAFNIUM ALLOYS
HARDNESS
HIGH TEMPERATURE
IRON ALLOYS
LATTICES
MACHINE PARTS
MATERIALS TESTING
MELTING
METALLOGRAPHY
METALS, CERAMICS, AND OTHER MATERIALS
NICKEL ALLOYS
NIOBIUM ALLOYS
OXIDATION
PLANNING
POWDERS
PREPARATION
PRESSURE
RODS
SILICIDES
SINTERING
SOLID SOLUTIONS
STABILITY
TANTALUM ALLOYS
TEMPERATURE
TENSILE PROPERTIES
TUNGSTEN
TUNGSTEN ALLOYS
USES
VANADIUM ALLOYS
WATER
ZIRCONIUM ALLOYS
CASTING
CHROMIUM ALLOYS
COBALT ALLOYS
COMPACTING
COOLING
ELECTRIC ARCS
ELECTRODES
HAFNIUM ALLOYS
HARDNESS
HIGH TEMPERATURE
IRON ALLOYS
LATTICES
MACHINE PARTS
MATERIALS TESTING
MELTING
METALLOGRAPHY
METALS, CERAMICS, AND OTHER MATERIALS
NICKEL ALLOYS
NIOBIUM ALLOYS
OXIDATION
PLANNING
POWDERS
PREPARATION
PRESSURE
RODS
SILICIDES
SINTERING
SOLID SOLUTIONS
STABILITY
TANTALUM ALLOYS
TEMPERATURE
TENSILE PROPERTIES
TUNGSTEN
TUNGSTEN ALLOYS
USES
VANADIUM ALLOYS
WATER
ZIRCONIUM ALLOYS