A METHOD OF MANUFACTURE OF AN ALUMINIUM ALLOY AND THE ALLOY OBTAINED BY THIS PROCESS

Patent · Thu May 25 04:00:00 EDT 1961

OSTI ID:4079495

A method of manufacture of aluminum alloys which are corrosion resistant to water under pressure and at high temperatures and includes iron and/or nickel is described. The alloyed granules contain between 0.05 and 4% iron or nickel or both. The granules are compressed to form an alloyed mass. The mass is extruded to produce a shearing effect adjacent to the surface. Through these two processes the added metals form an even distribution and fine dispersion in the aluminum. The granules are distinguished in that they are subjected to heat treatment in order to ensure an intermetallic diffusion. The granules have a silicon content lower than 0.01%, and contents in each of zinc, manganese, and magnesium lower than 0.005%, and of copper lower than 0.01%. The shearing is obtained by deviations and constrictions caused in the overflow in the vicinity of the drawing-plate of the extrusion apparatus. The granules are of the 300 microns size. (N.W.R.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-15-021191
• OSTI ID: 4079495
• Report Number(s): GB 868769
• Country of Publication: United Kingdom
• Language: English

Related Subjects

ALUMINUM
ALUMINUM ALLOYS
COPPER
CORROSION
DIFFUSION
DISPERSIONS
DISTRIBUTION
EXTRUSION
FABRICATION
HEAT TREATMENTS
HIGH TEMPERATURE
INTERMETALLIC COMPOUNDS
IRON
IRON ALLOYS
MACHINE PARTS
MAGNESIUM
MANGANESE
MASS
METALS, CERAMICS, AND OTHER MATERIALS
NICKEL
NICKEL ALLOYS
PLATES
PRESSURE
QUANTITY RATIO
SHEAR
SILICON
STABILITY
SURFACES
TENSILE PROPERTIES
THICKNESS
WATER
ZINC