Abstract
Tensile creep studies of the embrittlement of notched iron by liquid copper in the range 1100 to 1130° C have shown the embrittlement to be of the delayed failure type, from diffusion-controlled, grain boundary penetration by copper with accompanying extended surface notching. Linking of surface cracks and internal cavities along copper-penetrated grain boundaries was the final failure mode. Crack growth was determined by the rate and amount of copper diffusion ahead of a crack and not by the feed of liquid to the crack tip.
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Hough, R.R., Rolls, R. Creep fracture phenomena in iron embrittled by liquid copper. J Mater Sci 6, 1493–1498 (1971). https://doi.org/10.1007/PL00020652
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DOI: https://doi.org/10.1007/PL00020652