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Structural and phase mechanism and rate of interaction between TiCu, Ti3Cu4, and Ti2Cu3 intermetallics and hydrogen. II. Destructive hydrogenation of intermetallics

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Powder Metallurgy and Metal Ceramics Aims and scope

The structural and phase mechanism and the rate of TiCu, Ti3Cu4, and Ti2Cu3 destructive hydrogenation (DH) are studied at 773 K under a hydrogen pressure of 1.0 MPa. The mechanism of destructive hydrogenation of the intermetallics consists in the formation of a hydrogen solid solution, selective hydrogenation of titanium, and subsequent formation of intermediate intermetallics and copper. The destructive hydrogenation products are nondestructive TiH1.9–Cu matrix composites. The rate of TiCu, Ti3Cu4, and Ti2Cu3 destructive hydrogenation is limited by the rates of hydrogen dissociation on the intermetallic surface and the diffusion of titanium hydride. The products of TiCu, Ti3Cu4, and Ti2Cu3 destructive hydrogenation are recombined in vacuum and hydrogen atmosphere.

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References

  1. T. I. Bratanich, O. V. Kucheryavyi, V. V. Skorokhod, et al., “Structural and phase mechanism and rate of interaction between TiCu, Ti3Cu4, and Ti2Cu3 intermetallic compounds and hydrogen. I. Formation and decomposition of intermetallic hydrides,” Powder Metall. Met. Ceram., 51, No. 3–4, 234–242 (2012).

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Authors and Affiliations

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

    O. V. Kucheryavyi, T. I. Bratanich, V. V. Skorokhod, L. I. Kopylova & A. V. Kotko

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  1. O. V. Kucheryavyi
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  2. T. I. Bratanich
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  3. V. V. Skorokhod
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  4. L. I. Kopylova
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  5. A. V. Kotko
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Corresponding author

Correspondence to T. I. Bratanich.

Additional information

Translated from Poroshkovaya Metallurgiya, Vol. 51, No. 5–6 (485), pp. 105–111, 2012.

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Kucheryavyi, O.V., Bratanich, T.I., Skorokhod, V.V. et al. Structural and phase mechanism and rate of interaction between TiCu, Ti3Cu4, and Ti2Cu3 intermetallics and hydrogen. II. Destructive hydrogenation of intermetallics. Powder Metall Met Ceram 51, 333–338 (2012). https://doi.org/10.1007/s11106-012-9437-y

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  • DOI: https://doi.org/10.1007/s11106-012-9437-y

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