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<p>This paper reports the development of composite Al5083 and mixed reinforcements of TiC and CuO metal matrix composites by powder metallurgy method for compaction pressure and sintering temperature. The main purpose was to improve the mechanical properties such as tensile strength and hardness of the Al5083 matrix by adding different weight percentages (2 wt% to 4 wt%) of TiC and CuO. The mixed powders were cold pressed and sintered at selected temperature in a controlled manner to achieve uniform microstructure with better interfacial bonding between the matrix and reinforcements. The tensile strength improved significantly up to 285.6&#xa0;MPa with addition of 3 wt% TiC and CuO at compaction pressure (CP) of 400&#xa0;MPa, sintering temperature-675&#xa0;°C The hardness increased continuously with the increase in reinforcement concentration attained its maximum value as 102.3 Hv when CuO/TiC reinforcement combination increases from 2.5 to 3.5 wt%; CP range between 340&#xa0;MPa–360&#xa0;MPa and sintering temp-645 –675&#xa0;°C. it was found that a synergistic effect between iPod and CuO particles contributed to the high load-bearing capacity, grain refinement, resistance to plastic deformation and ramp diagram has been generated using Design Expert software .these findings reveal the potential of hybrid reinforcements to custom design Al5083-based composites for advanced structural and industrial applications.</p>

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Improvement of mechanical properties on metal matrix composites reinforced with CuO and TiC hybrid additives

  • 期刊论文

  • 发表日期：

    2026年1月23日

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  • Kathiravan T,
  • Nachimuthu S,
  • A. Srinivas Pavan Kumar,
  • M. Vishnu Vardhan,
  • R. Ramaswamy

摘要

This paper reports the development of composite Al5083 and mixed reinforcements of TiC and CuO metal matrix composites by powder metallurgy method for compaction pressure and sintering temperature. The main purpose was to improve the mechanical properties such as tensile strength and hardness of the Al5083 matrix by adding different weight percentages (2 wt% to 4 wt%) of TiC and CuO. The mixed powders were cold pressed and sintered at selected temperature in a controlled manner to achieve uniform microstructure with better interfacial bonding between the matrix and reinforcements. The tensile strength improved significantly up to 285.6 MPa with addition of 3 wt% TiC and CuO at compaction pressure (CP) of 400 MPa, sintering temperature-675 °C The hardness increased continuously with the increase in reinforcement concentration attained its maximum value as 102.3 Hv when CuO/TiC reinforcement combination increases from 2.5 to 3.5 wt%; CP range between 340 MPa–360 MPa and sintering temp-645 –675 °C. it was found that a synergistic effect between iPod and CuO particles contributed to the high load-bearing capacity, grain refinement, resistance to plastic deformation and ramp diagram has been generated using Design Expert software .these findings reveal the potential of hybrid reinforcements to custom design Al5083-based composites for advanced structural and industrial applications.