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Effect of gas media on the structural evolution and phase composition of detonation coatings sprayed from mechanically alloyed Ti–Al–B powders

  • Theory and Technology of Sintering, Thermal and Chemicothermal Treatment
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Powder Metallurgy and Metal Ceramics Aims and scope

The paper examines the phase formation of detonation coatings sprayed from mechanically alloyed Ti–50 Al–25 B powder. It is shown that coatings with different phase compositions and functional properties can be consolidated from this activated powder by varying process conditions (including gas composition during detonation spraying). Three types of composite coatings with different structures are obtained: TiB and TiB2 inclusions are distributed in an intermetallic matrix (Al3Ti, γ-TiAl); inclusions of oxides and oxynitrides are additionally present in the same structure; inclusions of borides, Al, and Ti are distributed in a mixture of intermetallic and nitride (TiN, AlN) phases.

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Authors and Affiliations

  1. Frantsevich Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, Kiev, Ukraine

    V. E. Oliker, V. L. Sirovatka, I. I. Timofeeva, E. F. Grechishkin, M. S. Yakovleva & E. N. Eliseeva

  2. National Technical University of Ukraine ‘Kiev Polytechnic Institute’, Kiev, Ukraine

    T. Ya. Gridasova

Authors
  1. V. E. Oliker
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  2. V. L. Sirovatka
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  3. T. Ya. Gridasova
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  4. I. I. Timofeeva
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  5. E. F. Grechishkin
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  6. M. S. Yakovleva
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  7. E. N. Eliseeva
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Corresponding author

Correspondence to V. E. Oliker.

Additional information

Translated from Poroshkovaya Metallurgiya, Vol. 48, No. 11–12 (470), pp. 12–20, 2009.

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Oliker, V.E., Sirovatka, V.L., Gridasova, T.Y. et al. Effect of gas media on the structural evolution and phase composition of detonation coatings sprayed from mechanically alloyed Ti–Al–B powders. Powder Metall Met Ceram 48, 620–626 (2009). https://doi.org/10.1007/s11106-010-9178-8

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  • DOI: https://doi.org/10.1007/s11106-010-9178-8

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