Gas Atomized (NiCrY),E FORU

### **Product Introduction: Gas Atomized NiCrY Alloy Powder** **Gas Atomized NiCrY Alloy Powder** is a specialized nickel-chromium-yttrium alloy produced through advanced gas atomization technology, designed primarily for thermal spray coatings and surface protection applications. This manufacturing process creates highly spherical powder particles with excellent flow characteristics, uniform chemical composition, and controlled particle size distribution, making it ideal for applications requiring exceptional oxidation resistance and environmental protection at elevated temperatures. The gas atomization technique ensures high purity, low oxide content, and consistent particle morphology, providing reliable performance in corrosive and high-temperature environments where conventional materials would rapidly degrade. --- #### **Key Features & Advantages** * **Excellent Oxidation Resistance**: Forms a dense, adherent chromium oxide scale for high-temperature protection * **Superior Corrosion Resistance**: Provides outstanding resistance to various corrosive environments * **Good Thermal Stability**: Maintains coating integrity under thermal cycling conditions * **Spherical Particle Morphology**: Ensures excellent flowability and consistent feeding in thermal spray processes * **Controlled Composition**: Precise yttrium addition improves scale adhesion and coating durability * **High Purity**: Low oxygen and impurity content for superior coating quality --- #### **Chemical Composition (Typical Weight %)** | Element | Content Range (%) | Primary Function | |---------|-------------------|------------------| | **Nickel (Ni)** | Balance | Forms the alloy matrix, provides basic structure | | **Chromium (Cr)** | 18-22 | Forms protective Cr₂O₃ scale, provides corrosion resistance | | **Yttrium (Y)** | 0.3-0.8 | Enhances oxide scale adhesion, improves coating durability | | **Iron (Fe)** | ≤ 0.5 | - | | **Carbon (C)** | ≤ 0.05 | - | | **Other Elements** | ≤ 0.3 | Trace elements for specific property enhancement | --- #### **Physical Properties** | Property | Typical Value | Conditions/Notes | |----------|---------------|------------------| | **Theoretical Density** | 7.9 - 8.1 g/cm³ | Solid material | | **Melting Range** | 1350 - 1400 °C | - | | **Particle Shape** | Spherical | Gas atomized characteristic | | **Apparent Density** | 4.3 - 4.9 g/cm³ | Hall flowmeter test | | **Flow Rate** | 11 - 16 s/50g | ASTM B213 standard | | **Oxide Content** | < 0.15% | Typical maximum | --- #### **Mechanical Properties (Coating Characteristics)** | Property | Typical Value | Test Method/Notes | |----------|---------------|-------------------| | **Coating Hardness** | 200 - 300 HV₃₀₀ | As-sprayed condition | | **Bond Strength** | > 60 MPa | ASTM C633 standard | | **Porosity** | 1 - 3% | Metallographic analysis | | **Thermal Expansion Coefficient** | 13.0 - 14.5 × 10⁻⁶/°C | 20-1000°C range | --- #### **International Standards** * **AMS 4776**: Nickel Alloy, Corrosion and Heat-Resistant, Coatings, Powder for Thermal Spraying * **AMS 4777**: Nickel Alloy, Corrosion and Heat-Resistant, Coatings, Powder for Flame Spraying * **ASTM B214**: Standard Test Method for Sieve Analysis of Metal Powders * **ASTM B213**: Standard Test Method for Flow Rate of Metal Powders * **ISO 14919**: Thermal spraying - Wires, rods and cords for flame and arc spraying * **Customer-Specific Specifications**: Various OEM requirements for specific applications --- #### **Product Applications** **Industrial Applications:** - Boiler tube protection in power generation plants - Heat exchanger surface coatings - Chemical processing equipment protection - Furnace component coatings - Incinerator and waste-to-energy plant components **Aerospace Industry:** - Component protection in auxiliary power units - Engine mounting and support structures - Exhaust system components - Repair of nickel-based superalloy components **Energy Sector:** - Gas turbine component protection - Biomass power plant equipment - Geothermal energy system components - Nuclear reactor auxiliary components **Specialized Applications:** - Semiconductor processing equipment - Heat treatment fixture protection - High-temperature sensor coatings - Research and development applications --- #### **Available Specifications** **Particle Size Ranges:** - **Fine**: -45/+15 μm for high-quality thin coatings - **Medium**: -75/+45 μm for standard applications - **Coarse**: -106/+45 μm for high-deposition rates - **Custom distributions** available upon request **Packaging:** - Sealed containers with inert gas protection - Standard weights: 5kg, 10kg, 25kg - Custom packaging available for specific requirements --- #### **Coating Processes** * **Atmospheric Plasma Spray (APS)** * **High Velocity Oxygen Fuel (HVOF)** * **Arc Spray** * **Cold Spray** * **Flame Spray** --- **Disclaimer:** *The information provided herein is for technical reference purposes only. Actual performance characteristics may vary depending on powder lot characteristics, thermal spray parameters, substrate conditions, and specific application requirements. Users should conduct comprehensive testing and evaluation to determine suitability for their specific applications. Always adhere to manufacturer's safety guidelines and industry best practices when handling and processing metal powders.*

Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3094 gallon liquid totes Special package is available on request.