Diffusional Growth of Al2O3 Scales and Subscales on Ni-Al, Fe-Al and Fe-Mn-Al Alloys

  • W. W. Smeltzer
  • P. R. S. Jackson
  • H. A. Ahmed
Part of the NATO ASI Series book series (NSSB, volume 129)

Abstract

Oxidation of Ni-A l, Fe-Al and Fe-Mn-Al alloys at high temperature exhibits transitions from scale-subscale growth to scale growth dependent upon alloy aluminum contents. Alloy compositions presently can be specified leading to growth of scales containing an Al2O3 layer which acts as the most protective barrier presently available for imparting high temperature corrosion resistance to these alloys. It is demonstrated that this Al2O3 layer can exist either as an external film or beneath oxide layers composed of solvent alloy metal oxides, dependent upon alloy composition and structure.

Keywords

Nickel Chromium Ferrite Manganese Austenite 

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Copyright information

© Plenum Press, New York 1985

Authors and Affiliations

  • W. W. Smeltzer
    • 1
  • P. R. S. Jackson
    • 1
  • H. A. Ahmed
    • 1
  1. 1.Institute for Materials ResearchMcMaster UniversityHamiltonCanada

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