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The aim of the present research was to develop a cast metal matrix composite based on the Al-Cu system, reinforced with titanium carbideTitanium carbides (TiC) particles. The A201 aluminiumAluminium–copperCopper alloy is known for its exceptionally high mechanical strengthStrength, particularly after T6 or T7 heat treatmentHeat treatment. In this study, the A201 alloyA201 alloy was transformed into a composite material containing varying amounts of TiC (up to 5 wt. %) using the Self-Propagating High-Temperature Synthesis in Bath (SHSB) method. The research focused on thin-walled castingsCasting with wall thicknesses of 3 mm and 5 mm. Particular attention was given to the role of TiC particles in reducing the hot tearingHot tearing susceptibility (HTS) of the A201 alloyA201 alloy. Micro and macrostructural evolution, including grain refinement induced by TiC addition, was analyzed using optical and scanning electron microscopy. In addition, X-ray diffraction (XRD) analysis was performed to identify the phase components, lattice parameters changes, and internal strain variations. Numerical simulationNumerical simulation of the castingCasting and crystallization processes in a metal mold was also performed to determine the hot tearingHot tearing capacity of the Al-Cu alloy.

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Synthesis of A201-TiC In-Situ Composites via SHSB Technology for Thin-Walled Castings

  • 会议论文

  • 发表日期：

    2026年

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  • Marcin Górny,
  • Jan Marosz,
  • Janusz Lelito,
  • Magdalena Kawalec,
  • Łukasz Gondek,
  • Giuliano Angella,
  • Jarosław Piątkowski

摘要

The aim of the present research was to develop a cast metal matrix composite based on the Al-Cu system, reinforced with titanium carbideTitanium carbides (TiC) particles. The A201 aluminiumAluminium–copperCopper alloy is known for its exceptionally high mechanical strengthStrength, particularly after T6 or T7 heat treatmentHeat treatment. In this study, the A201 alloyA201 alloy was transformed into a composite material containing varying amounts of TiC (up to 5 wt. %) using the Self-Propagating High-Temperature Synthesis in Bath (SHSB) method. The research focused on thin-walled castingsCasting with wall thicknesses of 3 mm and 5 mm. Particular attention was given to the role of TiC particles in reducing the hot tearingHot tearing susceptibility (HTS) of the A201 alloyA201 alloy. Micro and macrostructural evolution, including grain refinement induced by TiC addition, was analyzed using optical and scanning electron microscopy. In addition, X-ray diffraction (XRD) analysis was performed to identify the phase components, lattice parameters changes, and internal strain variations. Numerical simulationNumerical simulation of the castingCasting and crystallization processes in a metal mold was also performed to determine the hot tearingHot tearing capacity of the Al-Cu alloy.