초록 ▼

Aluminum alloy compositions and related fabrication techniques are described. Articles made of the composition by the process contain a novel dispersed strengthening phase based on iron and refractory metals. Rapid solidification techniques are used to assure a fine distribution of this phase. Artic

Aluminum alloy compositions and related fabrication techniques are described. Articles made of the composition by the process contain a novel dispersed strengthening phase based on iron and refractory metals. Rapid solidification techniques are used to assure a fine distribution of this phase. Articles made according to the invention have mechanical properties significantly in excess of those of conventional aluminum alloys.

대표청구항 ▼

A high strength aluminum alloy article consisting essentially of about 5 to 15 weight percent iron, about 1 to 5 weight percent molybdenum, alone or in combination with an element selected from the group consisting of vanadium, titanium, zirconium, hafnium, niobium, tungsten, chromium and mixtures t

A high strength aluminum alloy article consisting essentially of about 5 to 15 weight percent iron, about 1 to 5 weight percent molybdenum, alone or in combination with an element selected from the group consisting of vanadium, titanium, zirconium, hafnium, niobium, tungsten, chromium and mixtures thereof, balance aluminum, said article having a microstructure which comprises an aluminum solid solution matrix containing a dispersion of strengthening particles, said particles being based on the compound Al3Fe with a portion of the Fe content being replaced with said molybdenum, and said element selected from the group consisting of vanadium, titanium, zirconium, hafnium, niobium, tunsten, chromium where present, said particles having an average size of less than 500 angstroms and an average spacing of less than 2,000 angstroms.