Micromechanics of plastic deformation of nanotwinned metals due to twin widening
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A theoretical description of plastic deformation of nanotwinned metals or ultrafine-grained metals containing high-density nanotwin ensembles is developed. Plastic deformation in terms of the proposed micromechanical approach is performed due to a sequential increase in the thickness of periodically distributed nanotwins. The “yield stress–deformation” dependence is constructed for nanotwinned copper (Cu), and its yield point is evaluated.
KeywordsPlastic Deformation Yield Point Twin Boundary Petch Relationship Ultrafine Grained
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