Investigation of the Mechanical Properties of Flat Rolled Products of Aluminium Alloy Al-Mg-Sc Under Various Deformation Processing Modes

Abstract

In this paper, the influence of various modes of deformation processingProcessing on the properties of flat rolled products made of 5081 and 5181 Al-Mg-Sc alloyAlloys system was studied. It is shown that the level of strength properties of annealed sheets depends on the degree of deformation during hot and cold rolling. A low sensitivity of the material containing 0.1 wt.% scandiumScandium to the degree of deformation during rolling, in relation to the material containing 0.03 wt.% scandiumScandium, has been found. The dependences of the influence of rolling temperature in the range of 410–500 °C on the mechanical propertiesMechanical properties of hot-rolled sheets of Al-Mg alloyMg alloys containing 0.1% Sc were obtained. The patterns of changes in the yieldYield strength of hot-rolled deformed semi-finished products depending on the rolling temperature and the degree of deformation have been revealed. It has been shown that the final level of strength properties depends primarily not on the amount of zirconium and scandiumScandium, but on the number and size of particles of the strengthening phase of the Al3(Zr, Sc) L12 type.