Abstract:
pressing workpieces in the cross shaped tool on the stress-strain state and
introduces the parameters of the microstructure of the pressed workpiece made of
D16 aluminum alloy. A comparative evaluation of the size of grains of ultrafine
structures after pressing the workpieces in the cross shaped tool with various
stages of deformation at temperature of 350 °C is provided. The characteristic
parameters of grain and defect structure are presented. It is shown that the blank
of D16 aluminum alloy ensures uniform formation of an ultrafine grain structure
with a size of grain of about 600 - 900 nm, which results an improved strength
properties of the alloy and preserves good ductility.
