Journal
JOURNAL OF MATERIALS RESEARCH
Volume 18, Issue 8, Pages 1908-1917Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1557/JMR.2003.0267
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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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