TA15 Titanium
TA15 has high strength and good weldability. It is widely used in aircraft structural components, such as wing beams and other critical structural parts. Its high strength enables it to withstand various complex loads encountered during flight.
Chemical Composition
Material Properties
|
Minimum Mechanical Properties of the Alloy at Room Temperature |
||
|
Tensile Strength |
Yield Strength |
Elongation |
|
Rm N/mm2 |
Rp0.2 N/mm2 |
A5% |
|
930 |
885 |
10% |
Feature
TA15's composition is carefully designed to maintain its α+β phase balance and performance. It consists mainly of titanium (85-90%) with key alloying elements: aluminum (5.5-7.0%) strengthens the α phase and improves heat resistance; zirconium (2.0-3.0%) enhances α phase toughness and stability. Tin (0.5-1.0%) may be added for extra strength and heat resistance. This precise mix ensures a stable α+β microstructure, optimizing strength, toughness, and workability.
TA15 boasts exceptional mechanical properties, ideal for structural use. With a minimum tensile strength of 895 MPa and yield strength of 825 MPa, it surpasses commercial pure titanium and many α-type alloys. It offers 10-15% elongation at break, facilitating forging, rolling, and machining. Notably, it maintains stability up to 400°C, excelling in high-temperature strength retention, and has excellent fatigue resistance and fracture toughness for safety-critical components.
Applications
1. Aerospace & Aviation
Aircraft structural components (wing ribs, fuselage frames, bulkheads)
Jet engine parts (compressor blades, disks, casings)
Spacecraft structural elements (satellite components, rocket engine mounts)
High-temperature fasteners (bolts, nuts for thermal environments)
2. Military & Defense
Fighter jet airframes (high-strength, heat-resistant structures)
Missile components (heat shields, propulsion system parts)
Armored vehicle parts (lightweight armor reinforcements)
3. Marine & Offshore Engineering
Submarine pressure hulls (high strength-to-weight ratio)
Ship propulsion systems (shafts, valves for corrosive environments)
4. Power Generation
Gas turbine components (blades, discs for high-temperature operation)
Nuclear reactor parts (coolant system components)
5. Industrial Applications
Chemical processing equipment (heat exchangers, reactor vessels)
High-performance automotive (racing engine valves, turbocharger components)
6. Emerging Technologies
Additive manufacturing (3D printing) for complex aerospace parts
Hypersonic vehicle development (thermal protection systems)
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