TC4 (Ti-6Al-4V) is the most widely used alpha-beta titanium alloy, offering an outstanding balance of high strength, low density, and excellent corrosion resistance. It possesses good ductility, formability, weldability, and high fatigue strength, performing reliably at both room and moderately elevated temperatures. It exhibits superior resistance to seawater, chlorides, and various corrosive environments. With excellent mechanical properties and processability, TC4 is extensively applied in aerospace, marine, medical, and chemical industries for high-performance structural components.