Ti6Al2Sn4Zr2Mo

Ti6Al2Sn4Zr2Mo is a titanium alloy that belongs to the alpha-beta class of titanium alloys. It is characterized by its good combination of high-temperature strength, creep resistance, and fracture toughness. The alloy contains approximately 6% aluminum, 2% tin, 4% zirconium, and 2% molybdenum, with the remainder being titanium. Aluminum and tin act as solid solution strengtheners and stabilize the alpha phase, while molybdenum is an allotriomorphic strengthener that also contributes to creep resistance. Zirconium is an alpha stabilizer and also improves fracture toughness.

This alloy is known for its excellent performance at elevated temperatures, making it suitable for applications where materials are exposed to significant heat. It exhibits good fatigue strength and resistance to oxidation and corrosion in various environments. The microstructure of Ti6Al2Sn4Zr2Mo typically consists of a mixture of alpha and beta phases, which can be tailored through heat treatment to optimize its mechanical properties.

Common applications for Ti6Al2Sn4Zr2Mo include components in aerospace engines, such as compressor blades and discs, where high-temperature strength and creep resistance are critical. It is also used in other demanding industrial applications that require a balance of high-temperature performance and mechanical integrity. The alloy can be fabricated using standard titanium processing techniques, including forging, rolling, and machining. Proper welding procedures are necessary to maintain its desirable properties.