Journal
PHILOSOPHICAL MAGAZINE LETTERS
Volume 81, Issue 9, Pages 583-593Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09500830110069297
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A new simulation technique (three-dimensional dislocation dynamics) enabling the capture of a hardening effect in metals due to irradiation is reported. When bombarded with high-energy particles, metals accrue internal damage. In irradiated Pd, for example, damage takes the form of interstitial loops. Such loops are nano-sized and typically have a high number density. The stress field of a loop is given from dislocation theory. It is shown here the hardening is due to the elastic interaction of gliding dislocations with a high number or spatially dispersed interstitial loops. Results are found to correlate well with experiments.
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