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


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.


Coated Specimen Uncoated Specimen Interfacial Void Surface Attack Subsurface Void 
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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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