Corrosion embrittlement of duralumin III : effect of the previous treatment of sheet material on the susceptibility to this type of corrosion

Henry S. Rawdon
naca-tn-284
Apr 1928


As a result of testing, it was determined that control of the rate of quenching and the avoidance of accelerated aging by heating are the only means of modifying duralumin itself so as to minimize the intercrystalline form of corrosive attack. It is so simple a means that it should be adopted even though it may not completely prevent, but only reduce, this form of corrosive attack. By so doing, the need for protection of the surface is less urgent.

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