Features of Spheroidization of Particles of Tool Cutting Inserts from Powder Hard Alloys

The issues related to obtaining the structure of heterogeneous powder materials for tool plates have been considered. Research has established that a quality powder material is produced as a result of creating a more balanced structure in the form of rounded particles of the solid phase, which have greater bonding strength with minimal amounts of free (surface) energy from interatomic interaction forces of the solid components of the alloys. The conducted studies have shown that when forming the structure of powder alloys with particles of regular shape (edged or rounded), the most important properties of hard alloys are enhanced, ultimately providing stable operational characteristics of parts such as wear resistance, fatigue strength, as well as hardness, creep resistance, and impact toughness.