29Co 24Ni 16Cr 6Al 0.3Y 7BN 14Polyester Powder Description:
29Co 24Ni 16Cr 6Al 0.3Y 7BN 14Polyester Powder is a specialized composite thermal spray powder tailored for abradable coatings in high-pressure compressor sections of jet engines and industrial gas turbines. Featuring a CoNiCrAlY matrix for superior oxidation and corrosion resistance, combined with boron nitride for solid lubrication, it minimizes wear on rotating components while optimizing gas path efficiency. The controlled porosity, adjustable through polyester content, ensures excellent friability against various metal components, enhancing durability and performance under challenging operational conditions. Heat treatment post-application further enhances abradability by removing polyester, making it ideal for temperatures up to 750°C (1380°F), with considerations for higher oxidation susceptibility beyond 650°C (1200°F).
29Co 24Ni 16Cr 6Al 0.3Y 7BN 14Polyester Powder Specifications:
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Nominal Chemistry
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29Co 24Ni 16Cr 6Al 0.3Y 7BN 14Polyester
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Nom. Particle Size Distr.(µm)
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-176 +7.8
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Morphology
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Spheroidal
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Max. Service Temperature (°C)
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550
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Range of Apparent Density (g/cm3)
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3.2
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29Co 24Ni 16Cr 6Al 0.3Y 7BN 14Polyester Powder Applications:
1. Aerospace: Used for abradable coatings in high-pressure compressor sections of jet engines to minimize wear on rotating components and maximize gas path efficiency.
2. Industrial Gas Turbines: Applied in similar compressor sections to achieve the same benefits of wear reduction and improved gas path efficiency.
3. Engineering: Utilized where controlled porosity and solid lubrication are advantageous, particularly in applications requiring enhanced abrasion resistance and operational reliability.
29Co 24Ni 16Cr 6Al 0.3Y 7BN 14Polyester Powder Packing:
Our 29Co 24Ni 16Cr 6Al 0.3Y 7BN 14Polyester Powder is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
29Co 24Ni 16Cr 6Al 0.3Y 7BN 14Polyester Powder FAQ:
Q1: How does 29Co 24Ni 16Cr 6Al 0.3Y 7BN 14Polyester Powder enhance gas path efficiency?
A1: The powder's composition includes boron nitride for solid lubrication, which reduces friction during operational surges, optimizing gas path efficiency.
Q2: What is controlled porosity, and why is it important in coatings made from 29Co 24Ni 16Cr 6Al 0.3Y 7BN 14Polyester Powder?
A2: Controlled porosity refers to the ability to adjust the amount of entrapped polyester, which affects the coating's friability and ability to minimize wear against different metal components. This feature ensures optimal performance and durability in various operating conditions.
Q3: How should 29Co 24Ni 16Cr 6Al 0.3Y 7BN 14Polyester Powder coatings be applied?
A3: Coatings should be applied using thermal spray techniques, followed by a recommended post-spray heat treatment to remove the polyester component and optimize porosity for enhanced abradability.
Q4: What are the temperature limitations of 29Co 24Ni 16Cr 6Al 0.3Y 7BN 14Polyester Powder coatings?
A4: The powder is suitable for service temperatures up to 750°C (1380°F). However, caution should be exercised as coatings may exhibit increased susceptibility to oxidation above 650°C (1200°F). Different recommendations apply when interacting with specific metal components such as titanium and stainless steel.
Q5: What benefits does 29Co 24Ni 16Cr 6Al 0.3Y 7BN 14Polyester Powder offer compared to other abradable materials?
A5: This powder provides superior oxidation and corrosion resistance due to its CoNiCrAlY matrix, along with enhanced wear resistance and solid lubrication from boron nitride, making it a reliable choice for demanding applications in aerospace and industrial sectors.
