Producing improved metal alloy products

Details Producing improved metal alloy products Producing improved metal alloy products

1975-11-14

1978-11-21

Dean, R.

Metal treatment

Compositions

Heat treating

295277, 75148, 148 115A, 148 32, C22F 104

Patent

active

041264860

ABSTRACT:
A dispersion strengthened aluminum alloy is produced by continuously casting an aluminum alloy containing 4 - 15% Si and other optional constituents in the form of a slab at a growth rate in excess of 25 cm/min. to solidify silicon in the form of elongated rods in a size range of 0.05 - 0.5 microns diameter. The cast slab is then subjected to at least 60% reduction to fragment the elongated silicon rods into finely divided particles, at least the final part of the reduction being effected by cold rolling, the cold-rolled sheet being subjected to a final annealing treatment at a temperature in the range of 250.degree. - 400.degree. C.

REFERENCES:
patent: 3884290 (1975-05-01), McCubbin
patent: 3930895 (1976-01-01), Moser
patent: 3938991 (1976-02-01), Sperry
patent: 3989548 (1976-11-01), Morris
Progress in Materials Science, vol. 12, Pergamon Press, N. Y., 1963, pp. 158-169.

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