Influence of High Pressure-High Temperature Method on the Selected Mechanical Properties of Steel AISI 316L with 2% TiB2

STEEL AISI 316L WITH 2% TiB 2 AISI 316L/TiB 2 /2p composites were manufactured by HP-HT using different pressures (5 and 7 GPa) and temperatures (900-1300°C), with constant reinforcing particle content 2 vol%.The mechanical properties of the composites were evaluated on the basis of hardness (HV0.3) and compression tests (20°C, 10 -5 s -1 ).The results showed that the role of sintering pressure increased with increasing process temperature.At temperatures of 900°C and pressures of 5 and 7 GPa the difference in measured values of compressive strength was 1-2%, while at 1300°C they reached 20%.At constant pressure of 5 GPa, a change in hardness and compressive strength of 40% were obtained with a temperature change of 900 to 1300°C.Changes in mechanical properties in the composite occurred without substantial changes in density, microstructure, reinforcement phase distribution, and phase composition in the matrix.