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The present study investigates the development of Al-Mg7-Cu1-2 alloys with Ti, V, and Nb additions. The main focus is based on microstructural evolution, phase formation, and defect characterizationCharacterization. The alloys were produced by gravity castingCasting into sand molds. FactSage thermodynamicThermodynamics simulationsSimulation were used to predict phase equilibria and resulting phases. The alloying of Ti, V, and Nb master alloysMaster alloy has resulted in grain refinement and homogenous distribution of said elements over the microstructureMicrostructure as confirmed by SEM–EDS mappings. Optical crack surface analysis revealed defects related to intermetallicIntermetallics phases. The combined use of theoretical simulationsSimulation and experimental techniques provided an understanding of how Ti, V, and Nb influence microstructureMicrostructure and mechanical propertiesMechanical properties. These findings suggest that strategic alloying with transition metals can increase the mechanical strengthStrength and reliability of Al-Mg7-Cu1.2 alloys. The approach adopted in the present study demonstrates the value of combining computational and experimental methods for the design and optimizationOptimization of advanced aluminum alloysAluminum alloy.

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Development and Microstructural Evaluation of Al-Mg7-Cu1.2 Alloys with Ti-V-Nb Alloying

  • 会议论文

  • 发表日期：

    2026年

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  • Armagan Gul,
  • Derya Dispinar

摘要

The present study investigates the development of Al-Mg7-Cu1-2 alloys with Ti, V, and Nb additions. The main focus is based on microstructural evolution, phase formation, and defect characterizationCharacterization. The alloys were produced by gravity castingCasting into sand molds. FactSage thermodynamicThermodynamics simulationsSimulation were used to predict phase equilibria and resulting phases. The alloying of Ti, V, and Nb master alloysMaster alloy has resulted in grain refinement and homogenous distribution of said elements over the microstructureMicrostructure as confirmed by SEM–EDS mappings. Optical crack surface analysis revealed defects related to intermetallicIntermetallics phases. The combined use of theoretical simulationsSimulation and experimental techniques provided an understanding of how Ti, V, and Nb influence microstructureMicrostructure and mechanical propertiesMechanical properties. These findings suggest that strategic alloying with transition metals can increase the mechanical strengthStrength and reliability of Al-Mg7-Cu1.2 alloys. The approach adopted in the present study demonstrates the value of combining computational and experimental methods for the design and optimizationOptimization of advanced aluminum alloysAluminum alloy.