How does the addition of tin to aluminum alloys affect their properties and durability?

Adding tin to aluminum alloys can significantly alter their properties and durability. Tin enhances the alloy's strength, hardness, and resistance to wear, making it suitable for applications requiring high mechanical properties. It also improves the alloy's corrosion resistance, particularly in marine environments. However, the addition of tin can reduce the alloy's ductility and formability, which might limit its use in certain applications that require extensive shaping or bending. The overall durability of the alloy is improved due to the increased resistance to environmental factors, but it's essential to balance the alloy composition to optimize its properties for specific applications.