Method of preparing copper-dendritic composite alloys for mechanical reduction
Copper-dendritic composite alloys are prepared for mechanical reduction to increase tensile strength by dispersing molten droplets of the composite alloy into an inert gas; solidifying the droplets in the form of minute spheres or platelets; and compacting a mass of the spheres or platelets into an integrated body. The spheres preferably have diameters of from 50 to 2,000 [mu]m, and the platelets thicknesses of 100 to 2,000 [mu]m. The resulting spheres or platelets will contain ultra-fine dendrites which produce higher strengths on mechanical reduction of the bodies formed therefrom, or comparable strengths at lower reduction values. The method is applicable to alloys of copper with vanadium, niobium, tantalum, chromium, molybdenum, tungsten, iron and cobalt. 3 figs.
- DOE Contract Number:
- W-7405-ENG-82
- Assignee:
- Iowa State Univ. Research Foundation, Inc., Ames, IA (United States)
- Patent Number(s):
- US 4770718; A
- Application Number:
- PPN: US 7-112678
- OSTI ID:
- 7021708
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360101* -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
CHROMIUM ALLOYS
COBALT ALLOYS
COPPER ALLOYS
CRYSTALS
DENDRITES
ELEMENTS
FABRICATION
FLUIDS
IRON ALLOYS
LIQUID METALS
LIQUIDS
MECHANICAL PROPERTIES
METALS
MOLYBDENUM ALLOYS
NIOBIUM ALLOYS
PARTICLE SIZE
SIZE
TANTALUM ALLOYS
TENSILE PROPERTIES
TUNGSTEN ALLOYS
VANADIUM ALLOYS