Abstract
RECENTLY1 it has been suggested that interstitial hydrogen in a face-centred cubic lattice will produce embrittlement and cause delayed failure under the appropriate conditions. Basically, the required conditions are that sufficient flow must occur to produce dislocation pile-ups and that the interstitial, under the influence of stress, must diffuse to the region of the piled-up array. In both the body-centred cubic and face-centred cubic lattices, dislocations have been observed to pile-up at an obstacle2,3.
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References
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Nutting, J. (private discussion).
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MIHELICH, J., TROIANO, A. Delayed Failure in a Hydrogenated Face-centred Cubic Alloy of Nickel. Nature 197, 996–997 (1963). https://doi.org/10.1038/197996a0
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DOI: https://doi.org/10.1038/197996a0
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