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ArticleName Determining the hardening curve and mechanical properties of rolled strips made of aluminium alloy AD33 with known chemical composition
DOI 10.17580/tsm.2021.12.10
ArticleAuthor Shatalov R. L., Fam V. Kh., Chan V. K.

Moscow Polytechnic University, Department of Material Forming and Additive Manufacturing, Moscow, Russia:
R. L. Shatalov, Professor, Doctor of Technical Sciences, e-mail:
V. Kh. Fam, Postgraduate Student, e-mail:
V. K. Chan, Postgraduate Student, e-mail:


The chemical composition of the material was studied by the opticalemission spectral method, which allowed us to determine the specific composition of aluminum alloy, which corresponds to the AD33 brand according to the Russian standard 4794-19. There was some experimental rolling of strips with a size of 3×25×190 mm with a compression of 10, 20 and 30% followed by testing the samples for rupture in order to determine the mechanical properties of the deformed rolled products. Based on the obtained data, the yield curve and the dependence of the time resistance σв and the relative elongation δ have been created to show the degree of deformation of the alloy. As the result, the regularities of changes in the strength and plastic characteristics of the degree of cold deformation of the AD33 aluminum alloy strips of known chemical composition have been established. The experiment shows that the time resistance σв and the yield strength increase with increasing compression with different intensities: σв increases monotonically almost linearly; increases intensively from 70 to 160 MPa at compression from 0 to 15%, and then slowly increases to 173.5 MPa at ε = 30%. The plasticity index — δ decreases from 29.35 to 11.2% according to the parabolic law of the second degree. Regression equations are obtained that allow us to calculate the main indicators of mechanical properties when rolling strips of aluminum alloy AD33 of known chemical composition. The adequacy of the obtained equations, confirmed by high correlation coefficients (R2 > 0,9), allows us to recommend them for the calculation of powwer indicators of rolling and design in automated design systems (CAD) of rational modes of deformation of aluminum alloy strips AD33.

keywords Chemical composition, aluminum alloy AD33, strip rolling, yield curves, regression equations, yield strength, time resistance and elongation

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