TC11

Brief

TC11 Composition and Alloy Type

• Nominal Composition: Ti-6.5Al-3.5Mo-1.5Zr-0.3Si
• Alloy Type: Alpha-beta (α-β) Lega di titanio
• Aluminum Equivalent: 3.5
• Molybdenum Equivalent: 7.3

Performance Characteristics

• High-Temperature Strength: Excellent thermal strength below 500°C
• Room Temperature Strength: High strength at room temperature
• Heat Processing: Good hot workability, including conventional processing and superplastic forming
• Weldability and Machinability: Suitable for welding and various machining processes

Corrosion Resistance

• General Corrosion Resistance: Good overall resistance to corrosion
• Heat Salt Stress Corrosion Sensitivity: Some sensitivity, similar to other titanium alloys

Applications

• Aerospace: Primarily used for compressor components in aircraft engines, such as blades, disks, drums, and shafts
• Castings: Can be used to make complex-shaped castings
• Engine Use: The most widely used titanium alloy in Chinese engines in recent years

Products and Processing

• Semi-Finished Products: Available in bars, forgings, and die forgings
• Beta Heat Treatment: Rapidly developing techniques for beta heat treatment and isothermal forging

Key Advantages

• High-Temperature Performance: Maintains strength and stability at high temperatures (up to 500°C)
• Processability: Excellent processing characteristics, both in terms of conventional and advanced manufacturing techniques
• Corrosion Resistance: Provides good resistance to various forms of corrosion, despite some sensitivity to heat salt stress corrosion