ON THE PRIMARY RECRYSTALLIZATION OF ZINC AND ITS ALLOYS

Studies were made on the recrystallization of pure zinc and the alloys Zn-0.08 Al-0.04 Mg, Zn-0.58 Pb-0.02 Cd and Zn-0.9 Cu (in wt.%). It ha s been ascertained that texture and temperature of recrystallization d epend on the schedule of cold deformation. It has been shown that the reason of this dependence are the differences in orientation and densi ty of the recrystallization nuclei formed during deformation. The prim ary recrystallization of zinc and its alloys takes place according to the theory of oriented nucleation. Preferred nuclei are (0001) (11 (2) over bar 0) slip bands which arise, in quantities depending on deform ation schedule, during multiple slip in (0001) (11 (2) over bar 0) and {11<(22)over bar>} (11 (2) over bar 3) systems o r during double copl anar slip in the (0001) plane.