# Udimet 520 Nickel Alloy Powder Properties and Applications

Introduction to Udimet 520 Nickel Alloy Powder

Udimet 520 is a high-performance nickel-based superalloy powder known for its exceptional strength, corrosion resistance, and high-temperature stability. This alloy is widely used in demanding applications across aerospace, power generation, and industrial sectors where extreme conditions are prevalent.

Key Properties of Udimet 520 Nickel Alloy Powder

1. Chemical Composition

Udimet 520 primarily consists of nickel (Ni) as its base element, with significant additions of chromium (Cr), cobalt (Co), molybdenum (Mo), and aluminum (Al). The precise composition may vary slightly depending on the manufacturer, but typically includes:

• Nickel: 50-55%

Keyword: udimet 520 nickel alloy powder

• Chromium: 18-20%
• Cobalt: 10-12%
• Molybdenum: 4-6%
• Aluminum: 2-3%
• Titanium: 2-3%

2. Mechanical Properties

Udimet 520 exhibits outstanding mechanical properties, especially at elevated temperatures:

• Tensile Strength: 1200-1400 MPa at room temperature
• Yield Strength: 800-1000 MPa at room temperature
• Elongation: 10-15%
• Hardness: 35-40 HRC
• Excellent creep resistance at temperatures up to 815°C (1500°F)

3. Thermal Properties

The alloy demonstrates remarkable thermal stability:

• Melting Range: 1315-1365°C (2400-2490°F)
• Thermal Conductivity: 11.4 W/m·K at 20°C
• Thermal Expansion Coefficient: 13.5 μm/m·K (20-1000°C)

4. Corrosion Resistance

Udimet 520 offers excellent resistance to:

• Oxidation at high temperatures
• Sulfidation
• Hot corrosion
• Stress corrosion cracking

Manufacturing Process

Udimet 520 powder is typically produced through gas atomization, which involves:

1. Melting the alloy in a controlled atmosphere
2. Breaking the molten metal into fine droplets using high-pressure inert gas
3. Solidifying the droplets into spherical powder particles
4. Classifying the powder to achieve the desired particle size distribution

Applications of Udimet 520 Nickel Alloy Powder

1. Aerospace Components

Udimet 520 is extensively used in aircraft engines for:

• Turbine blades and vanes
• Combustor components
• Afterburner parts
• High-pressure turbine disks

2. Power Generation

The alloy finds applications in:

• Gas turbine components