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Studying the Phase Transformation Kinetics of the U–6Nb Alloy Using NMR Methods

  • STRUCTURE, PHASE TRANSFORMATIONS, AND DIFFUSION
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Abstract

The inhomogeneous magnetic state arising from isothermal aging of the rapidly quenched U–6Nb alloy (6.3 wt % or 14 at % niobium) was studied for the first time using nuclear magnetic resonance of the 93Nb nucleus. In the process of phase transformation during isothermal annealing at Тan = 500°C, the fraction of niobium atoms in the bulk of the alloy increases in regions with a magnetic susceptibility corresponding to the alloys U1–хNbх (х > 0.14). It is shown that the process of isothermal transformation, accompanied by the formation of niobium-enriched structural precipitates, is fully completed after 60 hours.

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ACKNOWLEDGMENTS

We are grateful to A.E. Shestakov, D.V. Yakovlev, I.V. Toropov, K.G. Toporishchev, and A. S. Nedosvit’ (all are employees of the All-Russian Research Institute of Technical Physics) for help in our research.

Funding

This work was carried out as part of the state task of the Ministry of Education and Science of the Russian Federation (“Function”, state registration no. AAAA-A19-119012990095-0).

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Authors and Affiliations

  1. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, 620108, Ekaterinburg, Russia

    V. V. Ogloblichev, S. V. Verkhovskii, A. Yu. Germov, Z. N. Volkova & A. P. Gerashenko

  2. All-Russian Research Institute of Technical Physics, 456770, Snezhinsk, Chelyabinsk oblast, Russia

    Yu. N. Zuev, S. V. Bondarchuk & I. L. Svyatov

Authors
  1. V. V. Ogloblichev
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  2. Yu. N. Zuev
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  3. S. V. Verkhovskii
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  4. S. V. Bondarchuk
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  5. A. Yu. Germov
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  6. I. L. Svyatov
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  7. Z. N. Volkova
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  8. A. P. Gerashenko
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Correspondence to V. V. Ogloblichev.

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Translated by E. Chernokozhin

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Ogloblichev, V.V., Zuev, Y.N., Verkhovskii, S.V. et al. Studying the Phase Transformation Kinetics of the U–6Nb Alloy Using NMR Methods. Phys. Metals Metallogr. 121, 670–674 (2020). https://doi.org/10.1134/S0031918X20070078

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  • DOI: https://doi.org/10.1134/S0031918X20070078

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