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Distribution of Twins around a Microhardness Indenter in Close-packed Hexagonal Metals

Abstract

ATTEMPTS have been made to explain the hardness anisotropy of close-packed hexagonal metals in terms of the slip and deformation twinning modes which are available1–5. As a result, simplified models of the stress system around an indenter have been developed in which the shear stresses acting adjacent to the indenter facets are resolved in the slip and twinning planes and in the respective shear directions. The hardness variation was shown to be consistent with the variation in the resolved shear stresses for twinning in the basal planes of zinc, magnesium3 and beryllium4 and in the prism planes of zinc and magnesium3. It was therefore concluded that the hardness anisotropy could be due to twinning.

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References

  1. Daniells, F. W., and Dunn, C. G., Trans. A.S.M., 41, 419 (1949).

    Google Scholar 

  2. Feng, C., and Elbaum, C., Trans. A.I.M.M.E., 212, 47 (1958).

    CAS  Google Scholar 

  3. Schwartz, M., Nash, S. K., and Zeman, R., Trans. A.I.M.E., 221, 554 (1961).

    CAS  Google Scholar 

  4. Hill, N. A., and Jones, J. W. S., J. Nuclear Mat., 3, 138 (1961).

    Article  ADS  Google Scholar 

  5. Partridge, P. G., and Roberts, E., J. Inst. Met., 92, 50 (1963).

    CAS  Google Scholar 

  6. Partridge, P. G., and Roberts, E., Acta Met. (in the press).

  7. Schmid, E., and Boas, W., Plasticity of Crystals (Hughes, London, 1950).

    Google Scholar 

  8. Barrett, C. S., Structure of Metals, 376 (McGraw-Hill, 1952).

    Google Scholar 

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PARTRIDGE, P. Distribution of Twins around a Microhardness Indenter in Close-packed Hexagonal Metals. Nature 203, 634–635 (1964). https://doi.org/10.1038/203634a0

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