Al-Si-In/Ga alloy clad composite

Details Al-Si-In/Ga alloy clad composite Al-Si-In/Ga alloy clad composite

1979-03-15

1980-04-01

Dean, R.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

75148, B32B 1520

Patent

active

041962621

ABSTRACT:
An aluminum composite is provided having improved resistance to intergranular corrosion, especially a brazed aluminum composite. The composite comprises an aluminum base alloy core clad with a brazing alloy consisting essentially of from 4-14% silicon, from 0.01-2% of a material selected from the group consisting of indium, gallium and mixtures thereof, and the balance essentially aluminum. The additions to the brazing alloy reduce the tendency for the brazing alloy layer to induce intergranular corrosion of the core alloy layer. They also reduce the pitting rate of the brazing alloy layer.

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patent: 3881879 (1975-05-01), Singleton et al.
patent: 3898053 (1975-08-01), Singleton
patent: 4093782 (1978-06-01), Anthony et al.

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