№3 (2018)

Mashekov S.A., Dyja H., Maulenova M.R., Tusupkaliyeva E.A.

Using the modern high-precision Gleeble 3500 system, the patterns of variation in the resistance of deformation of an aluminum alloy 1050 under physical modeling of rolling on a longitudinal-wedge mill with various processing regimes are studied. With a single position, a change in the structure of an aluminum alloy 1050 with a multistage compression at different temperatures and deformation rates is described. At the same time, using physical modeling, an analysis was made of the influence of the modes of processing temperature deformation on the microstructure of alloy 1050 during rolling on a longitudinal-wedge mill, the kinetics of growth and grain refinement, conditions for the formation of a finegrained structure. It is established that dynamic and static recrystallization occurs in the range of deformation temperatures of 350÷450оС and a deformation rate of 1.5-5 m/s in the structure of the aluminum alloy 1050, depending on the conditions for processing the temperature deformation. It is proved that in order to ensure the structure of rolled products from alloy 1050, it is necessary to produce rolling of strips on a longitudinal-wedge mill with a rolling temperature of 350-450°C.
Keywords: compression, deformation resistance, plasticity, experiment, hardening, softening, recrystallization.