Soviet Powder Metallurgy and Metal Ceramics

, Volume 14, Issue 7, pp 572–575 | Cite as

X-ray diffraction study of the oxidation of Ni3(Al, Ti) alloys

  • M. P. Arbuzov
  • V. G. Chuprina
Test Methods and Properties of Materials

Conclusions

A study was made of the phase composition of the scale forming on Ni3(Al + 15 at.% Ti) and Ni3(Al + 5 at.%Ti) alloys during atmospheric oxidation at temperatures ranging from 600 to 1000°C. The scale was found to contain the oxides NiO, TiO2 (rutile),γ-Al2O3, NiO · TiO2, NiO · Al2O3, Ti3O5, and Ti2O3 together with Ni and a nickel base solid solution (Niss). The character of the distribution of these phase constituents in successive scale layers after oxidation under various conditions is described. A correlation was found between the phase composition of the scale and certain kinetic oxidation characteristics of the alloys.

Keywords

Oxidation TiO2 Nickel Al2O3 Solid Solution 

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Copyright information

© Plenum Publishing Corporation 1975

Authors and Affiliations

  • M. P. Arbuzov
    • 1
  • V. G. Chuprina
    • 1
  1. 1.Institute of Materials ScienceAcademy of Sciences of the Ukrainian SSRUkraine

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