FIELD: metal working.
SUBSTANCE: penetrator having hardness being much higher than hardness of item is introduced by strike in surface layer of wedge-shaped item and size of print is measured. Indenter is introduced at the side of wedge's edge at perpendicular direction to edge and along one surface of blade. Dynamic micro-hardness is determined by division of plastic deformation energy by volume of expelled material.
EFFECT: improved precision of estimation.
4 dwg
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