Investigation of mechanical properties of B4C/SiC/Al2O3 particle reinforced Al2024 hybrid composites

Cinici H.

Materials Research Express, vol.6, no.9, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 6 Issue: 9
  • Publication Date: 2019
  • Doi Number: 10.1088/2053-1591/ab2d79
  • Journal Name: Materials Research Express
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Gazi University Affiliated: Yes


© 2019 IOP Publishing Ltd.In the present study, Al2024 alloy powder (Al-Cu-Mg), frequently used in modern technology, reinforced with B4C, SiC and Al2O3 particles were used to produce hybrid composite. Pre-alloyed Al2024 powder and B4C, SiC, Al2O3 reinforcement components were mixed in a three dimensional mixer for 45 min. Mixed powders were compacted at 400 MPa under unidirectional press for the production of powder metal block. These block samples were sintered at 600 °C and then extruded at 500 °C. After then samples were cut with wire erosion method to ensure the appropriate standard dimension for transverse rupture strength tests. Transverse rupture strength and hardness values were determined depending on the type of the reinforcing components. In the study, maximum transverse rupture strength (920 MPa) and hardness value (104 HB) were obtained at Al2024 + 10 % wt B4C samples. On the other hand, the highest transverse rupture strength (901 MPa) and hardness (98 HB) in hybrid composite materials were obtained at Al2024 + B4C/SiC samples.