Udimet 720 Nickel Alloy Powder Properties and Applications

# 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.

Chemical Composition

The typical chemical composition of Udimet 720 nickel alloy powder includes:

  • Nickel (Ni): Balance
  • Chromium (Cr): 16-18%
  • Cobalt (Co): 14-15%
  • Molybdenum (Mo): 3-3.5%
  • Titanium (Ti): 5-5.5%
  • Aluminum (Al): 2.5-3%
  • Carbon (C): 0.02% max
  • Boron (B): 0.015% max
  • Zirconium (Zr): 0.03% max

Key Properties

Udimet 720 nickel alloy powder offers several outstanding properties:

Mechanical Properties

The alloy demonstrates excellent mechanical properties at both room and elevated temperatures:

  • Tensile strength: 1400-1600 MPa
  • Yield strength: 1100-1300 MPa
  • Elongation: 10-15%
  • Hardness: 35-40 HRC

Thermal Properties

Udimet 720 maintains its structural integrity at high temperatures:

  • Operating temperature range: up to 815°C (1500°F)
  • Excellent creep resistance
  • Good thermal fatigue resistance

Corrosion Resistance

The alloy offers superior resistance to:

  • Oxidation at high temperatures
  • Sulfidation
  • Hot corrosion

Manufacturing Process

Udimet 720 powder is typically produced through gas atomization, which creates spherical particles with:

  • Particle size distribution: 15-45 μm (can be customized)
  • High flowability
  • Excellent packing density

Applications

Udimet 720 nickel alloy powder finds applications in critical components for:

Aerospace Industry

  • Gas turbine engine components
  • Compressor and turbine disks
  • Blades and vanes
  • Combustion chamber parts

Industrial Applications

  • Power generation turbine components
  • Oil and gas equipment
  • High-temperature fasteners
  • Nuclear reactor components

Advantages Over Other Superalloys

Compared to other nickel-based superalloys, Udimet 720 offers:

  • Better balance of strength and ductility
  • Superior creep resistance
  • Improved fatigue life
  • Excellent weldability and fabricability

Conclusion

Udimet 720 nickel alloy powder represents a premium material solution for applications requiring exceptional performance under extreme conditions. Its unique combination of mechanical properties, thermal stability