What two materials primarily compose titanium alloy?

Titanium alloys are predominantly composed of titanium and aluminum, which are combined to enhance the properties of titanium for various applications, particularly in the aerospace and biomedical industries. This specific pair is crucial because aluminum serves to reduce the density of the alloy while increasing its strength and improving its corrosion resistance. The alloying of aluminum with titanium produces a material that is lightweight yet robust, making it an ideal choice for structures that require both durability and the ability to withstand extreme conditions.

Other combinations listed, although they include titanium, do not achieve the same balance of properties that titanium-aluminum alloys provide. Magnesium and zinc can influence specific attributes, but they are not foundational elements in the most commonly used titanium alloys. Likewise, copper is not typically combined with titanium in high-performance applications due to its impact on corrosion resistance and overall mechanical properties. Thus, the pairing of titanium with aluminum stands out as the primary and most effective combination in titanium alloy formulation.