The effect of process factors on structure formation and properties of PK G13 powder steel Report 3. PK G13 steel structure formation with different compaction schematic diagrams

Abstract

Structure formation of powder austenite produced with different compaction schematic diagrams is considered. It is found the steady fragmented austenite structure to be formed during compression in a closed die and transversal compaction. High degree and rate of deformation are shown to be ensured during hot forming according to the extrusion and non-equiaxial all-around compression resulting in preferential development of dy- namic and static recrystallization. In increasing the deformation degree according to the free compaction schematic diagram, the recrystallized grain sizes are reduced.