Accession Number : AD0289526

Title :   DEVELOPMENT OF ALUMINUM-BASE ALLOYS

Corporate Author : ALUMINUM CO OF AMERICA CLEVELAND OHIO

Personal Author(s) : TOWNER,R.J.

Report Date : 16 OCT 1962

Pagination or Media Count : 1

Abstract : An investigation of the feasibility of producing Al alloy extrusions with a yield strength at room temperature of 125,000 psi or higher was begun. The powder metallurgy approach was used in an attempt to obtain a combination of age hardening and dispersion hardening in Al-Zn-MgCu alloys to which insoluble alloying elements were added. A method of fabricating atomized alloy powders, which contained the fine dispersion of alloying elements, into relatively large (2 in. diam) extrusions of high quality was developed. After heat treatment, the highest longitudinal yield strength developed to date was 118,700 psi and the highest tensile strength was 122,400 psi. Three alloys had ratios of yield strength to density of 1.12 million in. (Author)

Descriptors :   *ALUMINUM ALLOYS, *POWDER METALLURGY, ADDITIVES, AGING (PHYSIOLOGY), CHROMIUM, COBALT, COPPER ALLOYS, DISPERSION HARDENING, HARDENING, HEAT TREATMENT, IRON, MAGNESIUM ALLOYS, MANGANESE, MECHANICAL PROPERTIES, MICROSTRUCTURE, MOLYBDENUM, NICKEL, POWDER ALLOYS, POWDER METALS, TITANIUM, TUNGSTEN, VANADIUM, X RAY DIFFRACTION, ZINC ALLOYS, ZIRCONIUM

Distribution Statement : APPROVED FOR PUBLIC RELEASE