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The plastic deformation of potassium single crystals at low temperatures

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Abstract

The yield stress of potassium single crystals was measured in the temperature range of 1.5 to 30 K for a wide range of orientations. The effects of nobs itutional solutes (sodium and rubidium) on the yield strength of potassium single crystals were also investigated. The Schmid law of critical resolved shear stress for slip is invalkid in the temperature-dependent region of yield stress, and the orientation dependence of yield stress is in agreement with the Peierls mechanism for screw dislocation motion. The validity of the Schmid law may be questionable even in the athermal region, as suggested by the observations at 30K. Alloy softening is observed in the temperature-dependent region of yield stress by adding substitutional solutes to potassium.

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References

  1. J. W. Christian, Proceedings of 2nd International Conference on Strength of Metals and Alloys, Asilomar (ASM Metals Park, Ohio, 1970) p. 31.

    Google Scholar 

  2. Idem, Proceedings of 3rd International Conference on Reinstoffe in Wissenschaft und Technik (Akademie - Verlag, Berlin, 1970) p. 263.

    Google Scholar 

  3. V. Vitek,Cryst. Latt. Defects 5 (1974) 1.

    Google Scholar 

  4. L. P. Kubin,Rev. Deform. Behav. Mater. 1 (1977) 244.

    Google Scholar 

  5. B. Sestak andA. Seeger,Z. Metallkde 69 (1978) 195.

    Google Scholar 

  6. Idem, ibid.,69 (1978) 355.

    Google Scholar 

  7. Idem, ibid. 69 (1978) 425.

    Google Scholar 

  8. Z. S. Basinski andM. S. Duesbery, “Dislocation Modeling of Physical Systems” (Pergamon Press, New York, 1981) p. 273.

    Google Scholar 

  9. Z. S. Basinski, M. S. Duesbery andG. S. Murty,Acta Metall. 29 (1981) 801.

    Google Scholar 

  10. E. N. Da C. Andrade andL. C. Tsien,Proc. R. Soc. A163 (1937) 1.

    Google Scholar 

  11. I. M. Bernstein, J. C. M. Li andM. Gensamer,Acta Metall. 15 (1967) 801.

    Google Scholar 

  12. I. M. Bernstein andJ. C. M. Li,Phys. Status Solidi 23 (1967) 539.

    Google Scholar 

  13. I. M. Bernstein andM. Gensamer,Acta Metall. 16 (1968) 987.

    Google Scholar 

  14. B. A. Hands andH. M. Rosenberg,ibid. 17 (1969) 455.

    Google Scholar 

  15. H. O. K. Kirchner,Acta Phys. Austriaca 48 (1978) 111.

    Google Scholar 

  16. Y. Aono, K. Kitajima andE. Kuramoto,Scripta Metall. 14 (1980) 321.

    Google Scholar 

  17. H. Matsui, A. Kimura andH. Kimura, Proceedings of 5th International Conference on Strength of Metals and Alloys (Pergamon Press, 1979) p. 977.

  18. A. Sato andM. Meshii,Acta Metall. 21 (1973) 753.

    Google Scholar 

  19. K. Masuda, Y. Sugano andA. Sato,J. Phys. Soc. Jpn. 48 (1980) 1233.

    Google Scholar 

  20. D. F. Stein, C. P. Wang Chen andR. A. Ayres, “The Inhomogeneity of Plastic Deformation” (ASM, Metals Park, Ohio, 1971) p. 55.

    Google Scholar 

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Authors and Affiliations

  1. Department of Metallurgical Engineering, Indian Institute of Technology, Kanour, India

    G. S. Murty

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  1. G. S. Murty
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Murty, G.S. The plastic deformation of potassium single crystals at low temperatures. J Mater Sci 21, 211–216 (1986). https://doi.org/10.1007/BF01144722

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  • DOI: https://doi.org/10.1007/BF01144722

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