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Morphology and decay kinetics of Co-Ni-Ti alloys

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Abstract

The effects of small-angle diffuse modulated-structure electron scattering in Co-Ni-Ti alloys are studied. It is shown that elastic atomic-plane displacement plays a determining role in satellite formation on electron-diffraction patterns. It is also shown that in the early disintegration stages in Co-Ni-Ti alloys, the new-phase particles are equiaxial and randomly disposed. At later stages, a transition to one-dimensionally periodic modulated structure is observed. The time dependence of modulation period and particle size is described by the Lifshits-Slezov-Vagner equation. The coagulation-activation energy determined from kinetics curves is Q=64 kcal/mole. It is concluded that volume diffusion controls particle coarsening.

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Authors and Affiliations

  1. V. D. Kuznetsov Siberian Physicotechnical Institute, Tomsk University, USSR

    Y. K. Nazarov, A. D. Korotaev & L. M. Dizhur

Authors
  1. Y. K. Nazarov
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  2. A. D. Korotaev
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  3. L. M. Dizhur
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Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 12, pp. 123–130, December, 1972.

The authors consider it their pleasant duty to express appreciation to L. S. Bushnev for discussion of the present work.

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Nazarov, Y.K., Korotaev, A.D. & Dizhur, L.M. Morphology and decay kinetics of Co-Ni-Ti alloys. Soviet Physics Journal 15, 1791–1797 (1972). https://doi.org/10.1007/BF00893086

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  • DOI: https://doi.org/10.1007/BF00893086

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