Conventional recrystallization can take place in metals by the subsequent annealing after deformation. However, in some metals and alloys, the recrystallization of locally heavily deformed grains can occur during the deformation without any subsequent heat treatment. Warm spraying process enables to heat the feedstock powder to high temperature below the melting point and simultaneously accelerate to high velocity of above 700 m/s. Therefore, the warm sprayed metallic powder particles can be easily deformed and dynamically recrystallized. This study presents the results of an investigation on the dynamic deformation behaviors of titanium, copper, and nickel powder particles.
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