Aluminum-lithium alloys suitable for forgings

Details Aluminum-lithium alloys suitable for forgings Aluminum-lithium alloys suitable for forgings

1990-06-15

1992-04-28

Dean, R.

Metal treatment

Compositions

Heat treating

148 115A, 148159, 148439, 420532, C22F 104, C22C 2112

Patent

active

051085194

ABSTRACT:
Disclosed is a process for forming a recrystallized forged product having low anisotropy or unrecrystallized forged products having high strength comprising providing a body of a lithium-containing aluminum base alloy comprised of 0.2 to 5 wt. % Li, 0.05 to 6 wt. % Mg, at least 2.45 wt. % Cu, 0.05 to 2 wt. % Zn, 0.5 wt. % max. Fe, 0.5 wt. % max. Si, at least one of the elements selected from the group consisting of Cr, V, Sc, Hf, Mn, Ag, In, Ti, Ni, Fe and Zr, with Cr, V, Ti and Zr in the range of 0.01 to 0.2 wt. %, Mn, Ni, Fe and Ag in the range of 0.01 to 1 wt. % and Hf, Sc and In in the range of 0.01 to 0.5 wt. %.

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patent: 4961792 (1990-10-01), Rioja et al.
"Microstructure and Toughness of High Strength Aluminum Alloys", by J. T. Staley, ASTM STP 605, pp. 71-103.

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