Journal
APPLIED PHYSICS LETTERS
Volume 101, Issue 23, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4769216
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Funding
- Australian Research Council [DP120100510]
- National Science Foundation of the United States [DMR-1160966, DMR-1104667]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1160966] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1104667] Funding Source: National Science Foundation
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We present evidence that the level of the applied stress plays a critical role in deformation twinning in face-centred cubic alloys. While conventional cold rolling of a face-centred cubic structure produces a microstructure with a high-density of extended dislocations, increasing the applied stress using high-pressure torsion gives a nano-twinned coarse-grained structure. This suggests the existence of a critical stress for deformation twinning which thereby delineates an approach for the production of nano-twinned microstructures in coarse-grained materials with superior mechanical properties. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4769216]
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