Effect of Mg/Si ratio and content on the microstructure and mechanical properties of cast Al-Li-Cu alloy

Key Points

• Mechanical properties improve with optimal magnesium and silicon content, enhancing alloy strength.
• Testing revealed that the best Mg/Si ratio significantly affects the microstructure of Al-Li-Cu alloys, which is crucial for applications.
• Evaluation of cast alloys across various Mg/Si ratios shows a direct impact on their mechanical properties and durability.
• Findings suggest that precise control of the Mg/Si ratio could lead to enhanced material performance in aerospace applications.