Udimet 720 Nickel Alloy Powder: Properties and Applications
Keyword: Udimet720 Nickel Alloy Powder
# Udimet 720 Nickel Alloy Powder: Properties and Applications
Udimet 720 Nickel Alloy Powder: Properties and Applications
Udimet 720 is a high-performance nickel-based superalloy powder widely used in demanding aerospace and industrial applications. This alloy is known for its exceptional strength, corrosion resistance, and ability to withstand extreme temperatures. In this article, we’ll explore the key properties of Udimet 720 powder and its various applications.
Chemical Composition of Udimet 720
The superior properties of Udimet 720 come from its carefully balanced chemical composition:
- Nickel (Ni): 55-59% (base)
- Chromium (Cr): 16-18%
- Cobalt (Co): 14-16%
- Titanium (Ti): 4.5-5.5%
- Aluminum (Al): 2.25-2.75%
- Molybdenum (Mo): 2.75-3.25%
- Tungsten (W): 1.0-1.5%
- Iron (Fe): ≤1.0%
- Carbon (C): ≤0.03%
Key Properties of Udimet 720 Powder
Mechanical Properties
Udimet 720 exhibits outstanding mechanical properties:
- Tensile strength: 1,380-1,450 MPa at room temperature
- Yield strength: 1,050-1,100 MPa
- Elongation: 12-15%
- Hardness: 38-42 HRC
Thermal Properties
The alloy maintains its strength at elevated temperatures:
- Operating temperature range: up to 815°C (1,500°F)
- Excellent creep resistance
- Good thermal fatigue resistance
Corrosion Resistance
Udimet 720 offers excellent resistance to:
- Oxidation at high temperatures
- Hot corrosion
- Stress corrosion cracking
Manufacturing Process
Udimet 720 powder is typically produced through:
- Vacuum induction melting (VIM)
- Electroslag remelting (ESR)
- Gas atomization to create fine powder particles
The powder is then used in various additive manufacturing processes such as selective laser melting (SLM) or electron beam melting (EBM).
Applications of Udimet 720 Powder
Aerospace Industry
Udimet 720 is extensively used in aircraft engine components:
- Turbine disks
- Compressor blades
- Combustor components
- High-pressure turbine blades
Industrial Gas Turbines
The alloy finds applications in:
- Power generation turbines
- Industrial compressor components
- High-temperature fasteners
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