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Quantifying grain boundary deformation mechanisms in small-grained metals
Nature, Published online: 10 December 2025; doi:10.1038/s41586-025-09800-7Experimental observations in small-grained polycrystals suggest a new concept of considering metallic grain boundaries not as defects but as separate defect-containing lattices, providing a potential explanation for the deformation behaviour of nanocrystalline metals.
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