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The High Temperature Oxidation Behaviour of the Single Crystal Ni-Base alloy M002 Mod. With and Without Protective Coatings

  • L. Peichl
  • J. Wortmann
  • H.-J. Rätzer-Scheibe

Abstract

Turbine blades for advanced aero engines are produced increasingly from Nickel-base alloys in single crystal form. In comparison to polycrytalline blades, their improved creep strength allows a higher operating temperature. The surface temperature of turbine blades at the leading and trailing edge is sometimes in the range 1050 to 1100°C. Under these conditions, the surface attack by oxidation cannot be neglected, and protection by way of a suitable coating has to be provided. In principal, plain aluminide diffusion coatings, noble metal modified aluminides and MCrA1Y overlay coatings are available. However, for a specific application the oxidation resistance of a particular coating, in comparison to the uncoated base material, has to be tested under service-like conditions.

Keywords

Coated Specimen Uncoated Specimen Interfacial Void Surface Attack Subsurface Void 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© ECSC, EEC, EAEC, Brussels and Luxembourg 1987

Authors and Affiliations

  • L. Peichl
    • 1
  • J. Wortmann
    • 1
  • H.-J. Rätzer-Scheibe
    • 2
  1. 1.MTU Motoren- und Turbinen-Union München GmbHGermany
  2. 2.DFVLRKölnGermany

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