Recrystallization of Duplex Brass

Abstract

ALTHOUGH the deformation and subsequent recrystallization of pure metals and single-phase alloys has been widely studied, little work has been done on the deformation of duplex alloys, that is, alloys containing two phases, and we know of no published work on their behaviour on annealing after cold work. The two phases will normally possess quite different physical properties. On application of a stress, the phase with the lower elastic limit will be plastically deformed at a lower stress, and the distribution of the deformation in the two phases will depend on their relative elastic limits and work-hardening characteristics. Recrystallization in the two phases can be expected to occur after different total deformations and at different temperatures, not only because of their different chemical compositions, but also because of the different extents to which deformation occurs in the crystals of the two phases.