Basic patterns of the generation of high-angle grain boundaries and the physical and mechanical properties of FeNi alloys upon severe plastic deformation

The evolution of the structural parameters of deformation fragments and dynamically recrystallized grains in FeNi alloy are analyzed by means of transmission electron microscopy and back-scattered electron diffraction in a Bridgman camera upon severe plastic deformation with an increase in the number of full turns at a room temperature. It is found that the formation of a great many high-angle grain boundaries in the structure is associated with low-temperature dynamic recrystallization.

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