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Metallographic study of the oxidation of Ni3Al-Ni3Nb alloys

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Conclusions

A study has been made of the microstructure of the scale formed on single- and two-phase alloys of the system Ni3Al-Ni3Nb and also on the compound Ni3Nb. It was found that the scale on the alloys investigated consists of several layers, and the microhardness of each layer was measured.

An X-ray phase analysis was made of each layer of the scale formed on Ni3Nb after 100 hours oxidation at 1100 °.

A scheme has been devised which shows the distribution of the oxides in the scale on the compounds Ni3Al and Ni3Nb and also on single- and two-phase alloys at 650 and 900 °. Some ideas concerning the mechanism of formation of the individual oxides are put forward.

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References

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Authors and Affiliations

  1. Institute for Problems in Science, AS UkrSSR, USSR

    M. P. Arbuzov & V. G. Chuprina

Authors
  1. M. P. Arbuzov
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  2. V. G. Chuprina
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Arbuzov, M.P., Chuprina, V.G. Metallographic study of the oxidation of Ni3Al-Ni3Nb alloys. Soviet Physics Journal 11, 11–15 (1968). https://doi.org/10.1007/BF00820465

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  • DOI: https://doi.org/10.1007/BF00820465

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