Effect of Severe Plastic Deformation on the Structure and Properties of Aluminum Alloys

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.