OBRABOTKAMETALLOV TECHNOLOGY Vol. 26 No. 1 2024 Ta b l e 1 Strength and temperature characteristics obtained during monotonic tensile tests of aluminum alloy specimens Material (aluminium alloy) Test temperature t, (°C) Ultimate strength σu, (MPa) Ultimate elongation δ, (%) Ultimate true strength Su, (MPa) Homologous temperature increment Ratio of ultimate true strength at room temperature to ultimate true strength at test temperature D16T* 20 460 19 523.6 0.31 1 150 380 19 452.2 0.45 0.86 200 330 11 366.3 0.5 0.7 250 220 13 248.6 0.56 0.47 300 150 13 169.5 0.61 0.32 AMg6M* 20 320 0.24 396.8 0.32 1 100 300 0.3 390 0.4 0.98 150 250 0.37 342.5 0.46 0.97 200 190 0.43 271.7 0.51 0.68 250 160 0.45 232 0.57 0.58 300 130 0.48 192.4 0.62 0.48 20 320 0.24 396.8 0.32 1 100 300 0.3 390 0.4 0.98 * rolled semi-fabricated product (sheets) a b Fig. 2. Changes in the mechanical properties of aluminum alloys D16T (a) and AMg6M (b)
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