Letter | Published:

Stress Concentration Effects in Tertiary Creep

Nature volume 192, pages 12811282 (30 December 1961) | Download Citation

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Abstract

IN most cases, fracture under high-temperature creep conditions results from the formation and linking up of small voids on the grain boundaries within the metal. A period of accelerating creep precedes the fracture and it is generally assumed that this acceleration is caused by the reduction in stress-carrying area through the formation of these voids1,2.

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References

  1. 1.

    , and , N.P.L. Symp. on Creep and Fracture of Metals at High Temperatures, 1954, 243 (H.M.S.O., London, 1956).

  2. 2.

    , Progress in Metal Physics, edit. by Chalmers, B., and King, R., 6, 168 (Pergamon Press, London, 1956).

  3. 3.

    , and , Amer. Inst. Mech. Eng. (Met. Soc.), 221, 613 (1961).

  4. 4.

    , and , J. Inst. Metals, 90, 53 (1961–62).

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Author information

Affiliations

  1. Metallurgy Department, University College, Swansea.

    • P. W. DAVIES
    •  & B. WILSHIRE

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DOI

https://doi.org/10.1038/1921281a0

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