International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

This work is focused on investigation of different thermomechanical treatment (TMT) regimes influencing mechanical and electrical properties of Al-Mg-Si alloy. Three TMT regimes were chosen, which differ in the number of treatment steps. Grain size, microhardness, electrical conductivity were measured. It was revealed that dividing TMT into 2 stages favorably affects formation of mechanical and electrical properties in Al6101.

At present time there is considerable interest in extending the application area of low-alloy and rather inexpensive heat- hardenable aluminum Al-Mg-Si alloys in the automotive industry, aviation, construction and electrical engineering. In this regard, the topical problem is to enhance strength and electrical conductivity of such materials, which would subsequently reduce the weight of products made of structural and electrical Al-Mg-Si materials. Severe plastic deformation is one of the promising methods of obtaining a significant increase in properties. In this paper a new SPD method is investigated – Multi-ECAP-Conform, characterized by the fact that per one processing cycle the accumulation of true strain is provided up to е>2.5. In order to study the stress-strain state effect on the mechanical properties of the aluminum Al-Mg-Si alloy, mathematical and physical modeling with the modern software Deform-3D were applied, as long as the well-established techniques of assessment of materials mechanical characteristics after plastic processing. The obtained results demonstrate the adequacy of using mathematical and physical modeling to estimate the stress- strain state by Multi-ECAP-Conform.