Applied stress controls the production of nano-twins in coarse-grained metals
- Title
- Applied stress controls the production of nano-twins in coarse-grained metals
- Author
- Megumi Kawasaki
- Keywords
- HIGH-PRESSURE TORSION; NANOCRYSTALLINE AL; STRAIN-RATE; DEFORMATION MECHANISM; COPPER; CU; STRENGTH; ALLOY; STEEL; STACKING-FAULT ENERGY
- Issue Date
- 2012-12
- Publisher
- AMERICAN INSTITUTE OF PHYSICS
- Citation
- Applied Physics Letters, 2012, 101(23), P.231903
- Abstract
- 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
- URI
- http://aip.scitation.org.access.hanyang.ac.kr/doi/10.1063/1.4769216http://hdl.handle.net/20.500.11754/48577
- ISSN
- 0003-6951
- DOI
- 10.1063/1.4769216
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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