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Effect of Strain-Rate on the Tensile-Yield Stresses of Niobium and Tantalum

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Abstract

IN the course of a systematic study of the mechanical properties of the body-centred cubic transition metals which is now being made in this laboratory, measurements have been made of the effect of strain-rate on the tensile-yield stresses of commercially pure niobium and tantalum. Since these measurements have given interesting results, it is proposed to give a preliminary account of them here. Specimens of average grain diameter about 25µ were prepared from sintered niobium supplied by Murex, Ltd., and tantalum specimens having an average grain diameter of about 400µ from electron beam melted material supplied by the Société Generale de Métallurgie, Hoboken.

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References

  1. Conrad, H., J. Iron and Steel Inst., 198, 364 (1961).

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  2. Christian, J. W., Masters, B. C., Mitchell, A., and Pargeter, F. W. J., Acta Cryst., 13, 1114 (1960).

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Authors and Affiliations

  1. Department of Metallurgy, Imperial College of Science and Technology, London, S.W.7

    G. A. SARGENT, P. J. SHERWOOD & A. A. JOHNSON

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  1. G. A. SARGENT
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  2. P. J. SHERWOOD
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  3. A. A. JOHNSON
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SARGENT, G., SHERWOOD, P. & JOHNSON, A. Effect of Strain-Rate on the Tensile-Yield Stresses of Niobium and Tantalum. Nature 195, 374–375 (1962). https://doi.org/10.1038/195374a0

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