Letter | Published:

Twinning at 77° K of ‘Flash-annealed’ Niobium

Naturevolume 199pages12841285 (1963) | Download Citation

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Abstract

NIOBIUM is known to twin at 77° K, and for the purest reported1 the estimated lower yield stress was 40 kg mm−2 and the maximum tensile stress only a little higher. For specimens of this purity the lower yield stress at room temperature was 7 kg mm−2.

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References

  1. 1

    Leadbetter, M. J., and Argent, B. B., J. Less Common Met., 3, 19 (1960).

  2. 2

    Evans, P. R. V., J. Less Common Met., 4, 78 (1962).

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Affiliations

  1. Union Carbide European Research Associates, s.a., 95, rue Gatti de Gamond, Bruxelles, 18

    • A. FOURDEUX
    •  & A. WRONSKI

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https://doi.org/10.1038/1991284b0

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