Correct option is D
Rivets should match or be compatible with the base material to prevent corrosion and material failure.
When riveting aluminum sheets, the rivets should ideally be made of aluminum or aluminum alloys to avoid galvanic corrosion and ensure similar mechanical properties between the rivet and the sheet.
· Using a dissimilar metal rivet (such as copper, brass, or iron) in an aluminum structure can lead to galvanic corrosion when exposed to moisture.
· Aluminum rivets are lightweight, corrosion-resistant, and compatible with aluminum sheets, ensuring a strong and durable joint.
· Aluminum alloy rivets (e.g., 2117-T4, 2024-T4) are commonly used in aerospace and automotive industries due to their high strength and corrosion resistance.
· Aluminum rivets are commonly used in aircraft, automobile, and lightweight structures.
