Abstract
INTERSTITIAL alloying elements, even in minute quantities, exert a potent influence on the mechanical behaviour of alloys. Of particular recent interest has been the behaviour of hydrogen in steels; where the phenomenon of hydrogen-induced delayed brittle failure has received special attention1–9. Time-dependent brittle failure implies that spontaneous brittle fracture will occur at loads substantially below those that may have been previously successfully sustained. The characteristic features are: (a) an incubation period; (b) slow crack propagation; (c) a lower critical stress below which failure will not occur. Both the incubation period for crack initiation and crack growth are controlled and paced by the diffusion of hydrogen4–6,8.
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SCOTT, T., TROIANO, A. Interstitials and Fracture of Metals. Nature 185, 372–373 (1960). https://doi.org/10.1038/185372a0
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DOI: https://doi.org/10.1038/185372a0
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