The Influence of Defined Small Amounts of Impurities on the Recrystallization of Aluminum after Small Deformation

摘要

The recrystallization behavior of aluminum with additions of less than 0.1% of Cu, Mg, Si, Mn, Ag, Hi and Zn was studied after tensile deformations of 15%. It was found that the effect of impurities upon the recrystallization of aluminum is much smaller after low deformations than after high deformations, although the calculated activation energies are similar in magnitude (51 - 61 • 103 cal. per mole).nIt was noted that for some of the alloy additions the re¬crystallization temperature, after an initial increase, decreases again with increasing amounts of impurities. This behavior could not be related to the properties of the alloy elements or to any existing theory of recrystallization.