Method of preparing copper-dendritic composite alloys for mechanical reduction

Patent · Fri Jan 01 00:00:00 EST 1988

OSTI ID:866716

Verhoeven, John D ^[1]; Gibson, Edwin D ^[1]; Schmidt, Frederick A ^[1]; Spitzig, William A ^[1]

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1. Ames, IA

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 2000 .mu.m, and the platelets thicknesses of 100 to 2000 .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.

• Research Organization: Ames Laboratory (AMES), Ames, IA; Iowa State Univ., Ames, IA (United States)
• DOE Contract Number: W-7405-ENG-82
• Assignee: Iowa State University Research Foundation, Inc. (Ames, IA)
• Patent Number(s): US 4770718
• OSTI ID: 866716
• Country of Publication: United States
• Language: English

Related Subjects

method
preparing
copper-dendritic
composite
alloys
mechanical
reduction
prepared
increase
tensile
strength
dispersing
molten
droplets
alloy
inert
gas
solidifying
form
minute
spheres
platelets
compacting
mass
integrated
preferably
diameters
50
2000
thicknesses
100
resulting
contain
ultra-fine
dendrites
produce
strengths
bodies
formed
therefrom
comparable
values
applicable
copper
vanadium
niobium
tantalum
chromium
molybdenum
tungsten
iron
cobalt
formed therefrom
mechanical reduction
inert gas
tensile strength
molten droplets
composite alloys
composite alloy
spheres preferably
dispersing molten
copper-dendritic composite
/75/29/264/419/