OBRABOTKAMETALLOV MATERIAL SCIENCE Vol. 26 No. 1 2024 Mechanical properties The alloys underwent uniaxial tensile tests at room temperature using a Zwick/Roell universal testing machine in accordance with ISO 6892-1, GOST 1497-84, and GOST 11150-84 standards. At least 5 tenfold round specimens with a 10 mm diameter were tested for each analyzed state. The data from the tests performed after the specifi c specimens production process stage is presented in Table 3 below. Ta b l e 3 Technological chain of the specimens’ research Process chain stage Homogenized material Cold rolled material Test TEM Mechanical properties Mechanical properties Optical microscopy Results and discussion The structure of the as-cast material after homogenization annealing for 4 hours at 440 °C is shown in fi gure 1. b Fig. 1. Fine structure of a cast billet made of 1570 alloy after its homogenization annealing at 440 °C for 4 hours: a) microdiff raction in the zone of axis [001] α; b) DF а
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