Abstract
FRACTOGRAPHIC studies1–3 using optical and electron microscopy have shown that, for many metals, high-strain fatigue endurance is determined by crack propagation of the type designated stage II by Forsyth4. This is contrary to the statistical argument put forward by Gittus5 and the dislocation intersection model of Gilman6, neither of which is in accord with fractographic evidence.
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References
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Price, A. T., and Elder, W. J., Central Elect. Res. Lab. Note RD/L/N/65.
Forsyth, P. J. E., Cranfield Symposium on Crack Propagation (1961).
Gittus, J. H., Nature, 202, 788 (1964).
Gilman, J. J., Proc. Intern. Conf. Atomic Mechanisms of Fracture (1959).
Grosskreutz, J. C. (to be published).
Coffin, L. F., Trans. Amer. Soc. Mech. Eng., 76, 931 (1954).
Williams, H. D., thesis, Univ. Cambridge (1961).
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PRICE, A., SMITH, P. Strain Hardening in Fatigue. Nature 209, 1123–1124 (1966). https://doi.org/10.1038/2091123a0
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DOI: https://doi.org/10.1038/2091123a0
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