Metal treatment – Compositions – Heat treating
Patent
1975-11-14
1978-11-21
Dean, R.
Metal treatment
Compositions
Heat treating
295277, 75138, 75148, 148 115A, 148 32, C22F 104
Patent
active
041264878
ABSTRACT:
A dispersion strengthened aluminum alloy sheet is produced by casting an Al-Fe 1.1 - 2.5% alloy optionally containing Si up to 2.0% and, optionally, proportions of other specified alloying constituents. The alloy is cast in the form of a slab at a growth rate in excess of 25 cm/min. at a thickness of less than 25 mm so that intermetallics are formed in the slab in the form of fine rods of a diameter of 0.05 - 0.5 micron. These rods are then segmented by reducing the slab by at least 60% by rolling to develop a dispersion of fine intermetallic particles. By final annealing the rolled sheet at a temperature in the range of 250.degree. - 400.degree. C a sheet having a good combination of yield strength and formability is obtained (as indicated by a yield strength of greater than 15 k.s.i. and tensile elongation greater than 15%).
REFERENCES:
patent: 3571910 (1971-03-01), Bylund
patent: 3827917 (1974-08-01), Zeigler et al.
patent: 3884290 (1975-05-01), McCubbin
patent: 3930895 (1976-01-01), Moser et al.
patent: 3938991 (1976-02-01), Sperry et al.
patent: 3989548 (1976-11-01), Morris
Morris Larry R.
Thomson John D.
Alcan Research and Development Limited
Dean R.
LandOfFree
Producing improved metal alloy products (Al-Fe alloy and Al-Fe-S does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Producing improved metal alloy products (Al-Fe alloy and Al-Fe-S, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Producing improved metal alloy products (Al-Fe alloy and Al-Fe-S will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2048014