Тhe use of aluminium and magnesium alloys in automotive lightweight technologies.

This paper presents comparative characteristics of the aluminum and magnesium alloys in the context of their utilization in the metallurgical and automotive industry. The studies carried out in our work help to solve the problem of reducing the weight of automotive devices to reduce fuel consumption through the use of aluminum-magnesium alloys. The originality of our article lies in a comprehensive study of the stated problem: development of a research methodology, testing of the alloys under study for uniaxial tension, quantitative analysis of the Portevin-Le Chatelier effect, development of a mathematical model for optimizing parts, computer simulation of the viscoplastic properties of a model sample. Analysis of the obtained strength parameters demonstrates that the flow characteristics of the two-phase alloy of aluminum and magnesium exceed the ultimate tensile strength by 50 %. Rate of extension was inversely proportional to the intensity of the Portevin-Le Chatelier effect. [ABSTRACT FROM AUTHOR]