Oxidation Resistant Nickel Aluminide Coating on Niobium Alloy C103 for High Temperature Aerospace Applications

Nouman Zubair; Noveed Ejaz; Muhammad Mansoor

doi:10.4028/p-g44bm8

Paper Titles

Effect of Nb on Oxide Formation by Isothermal Oxidation of Solution Treated Fe-40Ni-24Cr Ni-Based Alloy
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Role of Mn Alloying Element on the Oxide Growth Behavior of 800H Nickel-Based Alloy at 900°C
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Corrosion Inhibition of Low Carbon Steel in Soil Solutions, Using Novel Schiff Base Inhibitor
p.25

Corrosion Behavior of MoSi₂ Coated Hastelloy X Utilized in Iodine -Sulfur Cycle for Hydrogen Production Application
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Oxidation Resistant Nickel Aluminide Coating on Niobium Alloy C103 for High Temperature Aerospace Applications
p.43

Synthesis of Nano Ceramic Epoxy Hybrid Composite Coating on Metallic Substrate for Corrosion Protection
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Ultrasonic-Assisted Synthesis of Germanane and Siloxane Nanostructures
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Influence of Laser Energies on the Generation of Cobalt Oxide Nanoparticles via Laser Ablation in Liquid
p.69

Comparison between One-Dimensional and Three-Dimensional Optical Modelling of Ordered Black Silicon Nanostructures Using Effective Medium Approach
p.75

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Oxidation Resistant Nickel Aluminide Coating on Niobium Alloy C103 for High Temperature Aerospace Applications

Abstract:

Owing to its fairly higher melting point (2468°C) and superior thermal conductivity, Niobium alloys are rendered as candidate material for high temperature applications, where state of the art Nickel base super alloys cannot be used. Its applications possess wide range of aerospace components mainly encompassing aircraft exhaust chambers, thrust augmenters, rocket engines and other industries such as chemical and petrochemical. The only limitation with niobium alloys is their inferior oxidation resistance, which can be tackled by developing a high temperature oxidation resistant coating. In this regard, Nickel Aluminide (NiAl) having a melting point of 1638°C embraces a paramount importance amongst the coating categories. In this study, NiAl was synthesized using vacuum melting and strip casting followed by ball milling. The powder was coated on C-103 Niobium alloy specimens using air plasma technique and evaluated for high temperature stability. It was deduced that the coating was exceptionally stable up to 1234 °C in ambient conditions.