What is one advantage of using titanium for fasteners in composite structures?

Using titanium for fasteners in composite structures offers excellent corrosion resistance, which is a crucial advantage. Composite materials, especially those used in aerospace applications, are often exposed to harsh environments that can lead to corrosion in metal components. Titanium forms a stable oxide layer on its surface when exposed to the atmosphere, significantly mitigating the effects of corrosion from moisture, salt, and other environmental factors.

This corrosion resistance ensures the longevity and structural integrity of fasteners, contributing to the overall durability and performance of the composite structures they are used in. In contrast, while the other materials mentioned may have their own benefits, they do not provide the same level of corrosion resistance that titanium does, particularly in demanding environments found in aerospace and marine applications.