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Ni3Al and Ni3Ge. Energy of plane surface defects and abnormal temperature dependence of flow stress

  • Proceedings of the International Symposium “Orderings in Minerals and Alloys” (OMA-11)
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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

A significant temperature anomaly of the yield point is observed in Ni3Al and Ni3Ge alloys with the L1 2 superstructure. The temperature anomaly is caused by the thin structure of sliding superdislocations and plane defects in L1 2 entering the superdislocation structure. The temperature and concentration dependences of the parameters characterizing in the best way the temperature strengthening in Ni3(Al1 − x , Ge x ) alloys are investigated. It is shown that the alloying Ge element leads to more pronounced manifestation of the temperature strengthening effect in Ni3(Al1 − x , Ge x ).

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Authors and Affiliations

  1. Tomsk State University of Architecture and Building, Tomsk, Russia

    E. V. Kozlov, Yu. A. Abzaev, Yu. V. Solov’eva, V. A. Starenchenko & N. A. Koneva

Authors
  1. E. V. Kozlov
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  2. Yu. A. Abzaev
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  3. Yu. V. Solov’eva
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  4. V. A. Starenchenko
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  5. N. A. Koneva
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Corresponding author

Correspondence to Yu. A. Abzaev.

Additional information

Original Russian Text © E.V. Kozlov, Yu.A. Abzaev, Yu.V. Solov’eva, V.A. Starenchenko, N.A. Koneva, 2009, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2009, Vol. 73, No. 8, pp. 1083–1087.

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Kozlov, E.V., Abzaev, Y.A., Solov’eva, Y.V. et al. Ni3Al and Ni3Ge. Energy of plane surface defects and abnormal temperature dependence of flow stress. Bull. Russ. Acad. Sci. Phys. 73, 1022–1026 (2009). https://doi.org/10.3103/S1062873809080024

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  • DOI: https://doi.org/10.3103/S1062873809080024

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