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Nanostructures in Ti processed by severe plastic deformation

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Abstract

Metals and alloys processed by severe plastic deformation (SPD) can demonstrate superior mechanical properties, which are rendered by their unique defect structures. In this investigation, transmission electron microscopy and x-ray analysis were used to systematically study the defect structures, including grain and subgrain structures, dislocation cells, dislocation distributions, grain boundaries, and the hierarchy of these structural features, in nanostructured Ti produced by a two-step SPD procedure—warm equal channel angular pressing followed by cold rolling. The effects of these defect structures on the mechanical behaviors of nanostructured Ti are discussed.

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Zhu, Y.T., Huang, J.Y., Gubicza, J. et al. Nanostructures in Ti processed by severe plastic deformation. Journal of Materials Research 18, 1908–1917 (2003). https://doi.org/10.1557/JMR.2003.0267

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