Transfert de technologie

Oxidation - Corrosion Testing: Coatings Development

Applications

Microstructure of a superalloy: Zirconium-modified nickel aluminide – base nickel 

 > Aerospace

• Thermal barrier coatings for new generation engines.
• Abrasives coating.
• Life time prediction of coatings.

 > Thermal and Nuclear Energy

• Long life gas turbine.

 > Automotive

• Corrosion resistant and anti-wear resistant coating.

Keywords

• Oxidation mechanisms, Fused salt corrosion mechanisms, Salt spray tests, Electrolytic coatings, Electrolysis coatings, Composite coating, Thermo-chemical (cementation) coatings, Physical vapor deposition, Chemical vapor.

Advantages

• Unique expertise in customised oxidation and corrosion resistant coatings, with or without diffusion barrier.
• Accurate life time prediction of various coatings.
• Oxidation and corrosion characterisation in various atmospheres up to 1100°C.

Testing

• Cyclic oxidation tests.
• Fused salts corrosion tests.
• Salt spray test.
• Electrochemical processing.
• Coatings deposits by PCT, PECVD.

Customers

• French Arms Procurement Agency (DGA), Snecma, Turbomeca, European Commission.

 
Cyclic oxidation behaviour of simple aluminide (NiAl)
and zirconium modified aluminide (NiAlZr) coatings at 1150°C.

© ONERA 2009 - Crédits et conditions d'utilisation