Metal treatment – Process of modifying or maintaining internal physical... – With casting or solidifying from melt
Patent
1991-11-01
1993-07-13
Dean, R.
Metal treatment
Process of modifying or maintaining internal physical...
With casting or solidifying from melt
148698, 148699, 148700, 148702, 148415, 148437, C22F 104
Patent
active
052269833
ABSTRACT:
The present invention provides a process for making high strength, high ductility, low density rapidly solidified aluminum-base alloys, consisting essentially of the formula Al.sub.bal Zr.sub.a Li.sub.b X.sub.c, wherein X is at least one element selected from the group consisting of Cu, Mg, Si, Sc, Ti, U, Hf, Be, Cr, V, Mn, Fe, Co and Ni, "a" ranges from about 0.2-0.6 wt %, "b" ranges from about 2.5-5 wt %, "c" ranges from about 0-5 wt % and the balance is aluminum. The alloy is given multiple aging treatments after being solutionized. The microstructure of the alloy is characterized by the precipitation of a composite phase in the aluminum matrix thereof.
REFERENCES:
patent: 4747884 (1988-05-01), Gayle et al.
patent: 5076859 (1991-12-01), Rioja et al.
patent: 5091019 (1992-02-01), LaSalle
Gregson et al., "Microstructural Control of Toughness in Aluminum-Lithium Alloys", Acta Metallurgica, .sup.33, pp. 527-537 (1985).
B. van der Brandt et al., "Rapid Solidification Processing of Al-Cu-Li-Mg Alloys", Aluminum-Lithium Alloy II, Met. Soc. of AIME, pp. 433-446 (1984).
F. W. Gayle et al., "Composite Precipitates in an Al-Li-Zr Alloy", Scripts Metallurgica, .sup.18, pp. 473-478, (1984).
P. L. Makin et al., "On the Ageing of an aluminum-Lithium-zirconium alloy", J. Mat. Sci., .sup.19, pp. 3835-3843 (1984).
P. J. Gregson et al., "precipitation in Al-Li-Mg-Cu-Zr alloys", J. Mat. Sci. Lett., .sup.3, pp. 829-834 (1984).
P. L. Makin et al., "The nature of the cores composite particles formed in a Li-containing aluminum alloy", Phil. Mag. Lett., .sup.51, pp. L41-L47 (1985).
Bye Richard L.
Das Santosh K.
Skinner David J.
Allied-Signal Inc.
Buff Ernest D.
Dean R.
Fuchs Gerhard H,.
Kohler Robert R.
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