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Influence of material plasticity change on the evolved heat quantity of constructional steel subjected ECAP

The results related to the evaluation of stored energy in the process of plastic deformation of the structural steel Fe360 subjected to equal channel angular pressing are presented. Stored energy was determined as the difference between the plastic deformation work and evolved heat. The heat evolved in the process of plastic deformation was determined by solving the heat conduction equation simultaneously with the use of experimental temperature function. Temperature measurements during the static tensile tests were conducted using an FPAbased infrared camera.