Ni 18.5Cr 6Al Powder Description:
Ni 18.5Cr 6Al Powder is a nickel-chromium alloy powder with an aluminum cladding, noted for its vigorous exothermic reaction during spraying. This reaction ensures consistent bonding to substrates and strong interparticle adhesion. When applied using plasma spraying, it creates a self-bonding coating that offers excellent resistance to high-temperature oxidation and corrosion. This makes it ideal for use as a bond coat beneath ceramic top coats and for restoring worn or incorrectly machined parts made from nickel, nickel alloys, or corrosion-resistant steels. Although thermosprayed Ni 18.5Cr 6Al Powder coatings are not self-bonding, they are well-suited 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:
Aerospace Industry: This powder is used for creating high-temperature oxidation and corrosion-resistant coatings on turbine blades, engine components, and other critical parts.
Power Generation: It serves as a bond coat for ceramic top coats in gas turbines and other high-temperature environments, enhancing durability and performance.
Industrial Applications: Ni 18.5Cr 6Al Powder is utilized for restoring and rebuilding worn or mismachined parts made of nickel, nickel alloys, or machinable corrosion-resistant steels. It is also used in machine element clearance control applications as abradable coatings, ensuring precise control and performance.
Automotive: This powder is applied to high-temperature components such as exhaust systems and turbochargers, improving their resistance to oxidation and corrosion.
General Manufacturing: It is used 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 managed during storage and transportation to maintain the quality of the 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 ideal 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.
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