Corrosion embrittlement of duralumin II : accelerated corrosion tests and the behavior of high-strength aluminum alloys of different compositions

Henry S. Rawdon
naca-tn-283
Apr 1928


The permanence, with respect to corrosion, of light aluminum alloy sheets of the duralumin type, that is, heat-treatable alloys containing Cu, Mg, Mn, and Si is discussed. Alloys of this type are subject to surface corrosion and corrosion of the interior by intercrystalline paths. Results are given of accelerated corrosion tests, tensile tests, the effect on corrosion of various alloying elements and heat treatments, electrical resistance measurements, and X-ray examinations.

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