ARC-CAST MOLYBDENUM AND TUNGSTEN BASE ALLOYS (1957-1959)
Binary arc-cast alloys varying from 100% molybdenum to 100% of a second element (Nb, Ta, V, W, or Hf) were studied. All systems were evaluated for hardness, microstructure, lattice parameter, oxidation resistance, and forgeability. Arc-cast ingots were prepared for the binary systems of Mo with W, Ta, and V. The strengthening mechanisms in Mo and Mo--Ti alloys containing small additions of zirconium, carbon, hafnium, or boron were investigated. Tensile properties of Mo alloys were determined. Improvements in the ductility of Mo alloys, particularly in cast niobium. were attained by using the electron-beam melting technique. Ingots of Ti--W and Nb--W of the graded-compcsition type were prepared and evaluated in the cast state for hardness, lattice parameter, oxidation rates, amd macrographic and micrographic evaluations. Elastic moduli were determined for Mo and Mo alloys from room temperature to 2400 tained F. (See also NP-5897(Suppl.).) (C.J.G.)
- Research Organization:
- Climax Molybdenum Co. of Michigan, Detroit
- NSA Number:
- NSA-14-019427
- OSTI ID:
- 4176352
- Report Number(s):
- NP-8732; Project NR 039-002
- Country of Publication:
- United States
- Language:
- English
Similar Records
PILOT EVALUATION OF VANADIUM ALLOYS. Bimonthly Report No. 7, September 18, 1962-November 17, 1962
DEVELOPMENT OF TUNGSTEN-BASE ALLOYS. Final Report covering Period June 1958-December 1960
Related Subjects
CARBIDES
CASTING
CONFIGURATION
DUCTILITY
EFFICIENCY
ELASTICITY
ELECTRIC ARCS
ELECTRON BEAMS
FORGING
HAFNIUM ALLOYS
HARDNESS
HIGH TEMPERATURE
LATTICES
MELTING
METALLOGRAPHY
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM ALLOYS
NIOBIUM ALLOYS
OXIDATION
PREPARATION
QUANTITATIVE ANALYSIS
QUANTITY RATIO
REACTION KINETICS
RODS
STABILITY
TANTALUM ALLOYS
TEMPERATURE
TENSILE PROPERTIES
TITANIUM ALLOYS
TUNGSTEN ALLOYS
USES
VANADIUM ALLOYS
ZIRCONIUM ALLOYS