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This study systematically investigates the influence of chemical composition variations on the microstructure and performance of aluminum alloys, with a particular focus on the roles of silicon (Si), copper (Cu), magnesium (Mg), and zinc (Zn). Drawing upon extensive experimental data and literature, the work elucidates how subtle changes in elemental content govern phase formation, precipitation behavior, and the evolution of mechanical, thermal, and corrosion-related properties. Si was found to enhance castability and wear resistance while reducing thermal conductivity. Cu and Zn significantly improved strength through precipitation hardening but at the cost of corrosion resistance, whereas Mg contributed to both strengthening and corrosion protection, especially in balanced Mg–Si systems. The study further provides a comparative analysis of representative alloys such as AA6061, AA2024, and AA7075, linking alloying strategies to targeted applications in aerospace, marine, and thermal management fields. Based on these findings, practical guidelines for alloy design are proposed, alongside future research directions including high-entropy alloy exploration, machine learning-based composition optimization, and long-term environmental durability assessments. These results offer a comprehensive composition–structure–property framework to support the development of next-generation aluminum materials tailored for demanding engineering environments.

• MASTER'S THESIS
  • INTRODUCTION
  • CHAPTER 1 LITERATURE REVIEW OF ALUMINUM ALLOYS
    • 1.1 Classification of aluminum alloy
    • 1.2 Key Properties of Aluminum Alloys
      • 1.2.1. Mechanical properties of 2xxx aluminum
      • 1.2.2 Mechanical properties of 4xxx aluminum
      • 1.2.3 Mechanical properties of 6xxx aluminum
      • 1.2.4 Mechanical properties of 7xxx aluminum
    • 1.3 Effect of chemical composition on Al alloy
    • 1.4 Summary influence of alloying elements on the
  • CHAPTER 2 METHODOLOGY OF ALUMINUM ALLOYS
    • 2.1 Selection of Alloys
    • 2.2 Chemical Composition Analysis
    • 2.3 Microstructure Characterization
    • 2.4 Mechanical & Thermal Testing
    • 2.5 Corrosion Testing
    • 2.6 Data Collection and Statistical Analysis
  • CHAPTER 3 RESULTS AND DISCUSSION
    • 3.1 Influence of Alloying Elements on Microstructu
    • 3.2 Correlation Between Composition and Mechanical
    • 3.3 Impact on Thermal and Corrosion Behavior
  • CONCLUSIONS
  • REFERENCES