Ni 18.5Cr 6Al Powder Description:
Ni 18.5Cr 6Al Powder is an aluminum-clad nickel-chromium alloy powder known for its vigorous exothermic reaction during spraying, ensuring consistent bonding to substrates and strong interparticle adhesion. When plasma-sprayed, it forms a self-bonding coating that provides excellent high-temperature oxidation and corrosion resistance, making it ideal as a bond coat for ceramic top coats and for restoring worn or mismachined parts made of nickel, nickel alloys, or corrosion-resistant steels. Thermosprayed Ni 18.5Cr 6Al Powder coatings, while not self-bonding, are recommended for high-temperature abradable coatings and machine element clearance control applications when applied to properly prepared surfaces.
Ni 18.5Cr 6Al Powder Specifications:
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Nominal Chemistry
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Ni 18.5Cr 6Al
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Nom. Particle Size Distr.(µm)
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-125 +45
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Morphology
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Irregular
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Max. Service Temperature (°C)
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980
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Range of Apparent Density (g/cm3)
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2.7
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Achieved Microhardnesss HV
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230
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Achieved Macrohardness
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80 - 90 HRB
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Ni 18.5Cr 6Al Powder Applications:
1. Aerospace Industry: Used for high-temperature oxidation and corrosion-resistant coatings on turbine blades, engine components, and other critical parts.
2. Power Generation: Applied as a bond coat for ceramic top coats in gas turbines and other high-temperature environments to enhance durability and performance.
3. Industrial Applications: Utilized for restoring and building up worn or mismachined parts made of nickel, nickel alloys, or machinable corrosion-resistant steels. Employed in machine element clearance control applications as abradable coatings to ensure precise control and performance.
4. Automotive: Used in high-temperature components such as exhaust systems and turbochargers to improve resistance to oxidation and corrosion.
5. General Manufacturing: Applied in various manufacturing processes where high-temperature stability and corrosion resistance are essential, including chemical processing equipment and heat exchangers.
Ni 18.5Cr 6Al Powder Packing:
Our Ni 18.5Cr 6Al Powder is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
Ni 18.5Cr 6Al Powder FAQ:
Q1: How does the coating process differ between plasma spraying and thermospraying for Ni 18.5Cr 6Al Powder?
A1: When plasma-sprayed, Ni 18.5Cr 6Al Powder forms a self-bonding coating suitable for high-temperature oxidation and corrosion resistance. In contrast, thermosprayed coatings are not self-bonding and require properly prepared surfaces, making them suitable for abradable coatings and clearance control applications.
Q2: Can Ni 18.5Cr 6Al Powder be used for repairing worn or mismachined parts?
A2: Yes, Ni 18.5Cr 6Al Powder is recommended for the salvage and buildup of worn or mismachined parts made of nickel, nickel alloys, or machinable corrosion-resistant steels, providing a reliable and durable solution.
Q3: What surface preparation is required for applying Ni 18.5Cr 6Al Powder using thermospray processes?
A3: Proper surface preparation using standard methods is essential when applying Ni 18.5Cr 6Al Powder using thermospray processes to ensure effective bonding and optimal performance of the coating.
