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Twinning in Be-Cu alloys. Part I

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Abstract

Mechanical twinning has been examined for 99.99% beryllium and for alloys of Be with 0.4 at. % and 2.3 at. % Cu. The yield points have been measured for single twins, and also studies have been made of the behavior of the twin boundaries under pulsating and sign-varying loads. The concentration dependence of the yield points for single twins has been used to estimate the interaction energy for the twinning dislocations with impurity atoms. The Bauschinger effect occurs at the boundaries of the mechanical twins, and the characteristics of this are dependent on the angle of the twin wedge, the impurity concentration, and the number of twinning cycles.

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Authors and Affiliations

  1. Kharkov Social Nutrition Institute, USSR

    V. I. Bashmakov, I. I. Papirov & N. G. Yakovenko

Authors
  1. V. I. Bashmakov
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  2. I. I. Papirov
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  3. N. G. Yakovenko
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Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 12, pp. 104–108, December, 1972.

We are indebted to G. F. Tikhinskiy for providing the alloy crystals used here.

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Bashmakov, V.I., Papirov, I.I. & Yakovenko, N.G. Twinning in Be-Cu alloys. Part I. Soviet Physics Journal 15, 1774–1777 (1972). https://doi.org/10.1007/BF00893082

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  • DOI: https://doi.org/10.1007/BF00893082

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