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Stabilizing nanostructured materials by coherent nanotwins and their grain boundary triple junction drag
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10.1063/1.3072595
/content/aip/journal/apl/94/2/10.1063/1.3072595
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/2/10.1063/1.3072595
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Figures

Image of FIG. 1.
FIG. 1.

Variation in hardness with annealing time at 298 K for the RT- and the cryo-SPD samples created at 1/s and . Also shown are the microstructures immediately after the SPD (A, B, C) and after 1460 h (D, E) of annealing. Inset A—sporadic twinning (cryo-SPD, 1/s), inset B—uniform dense twinning (cryo-SPD, ), inset C—absence of twinning (RT-SPD, ), inset D—dense twinning (cryo-SPD, ), and inset E—absence of twinning (cryo-SPD, 1/s).

Image of FIG. 2.
FIG. 2.

TEM micrograph of copper created by cryo-SPD at 1/s showing discrete nanostructured regions and a nanotwinned region (demarcated by dashed line). SAD pattern (inset) confirms the nanotwinning.

Image of FIG. 3.
FIG. 3.

TEM micrographs of copper created by the high-strain rate cryo-SPD showing a uniform nanotwinned region superimposed onto a nanostructured region. Top right inset shows HREM micrograph of the copper. SAD pattern (inset top left) exhibits twin reflections.

Image of FIG. 4.
FIG. 4.

Intersection (a) of a deformation twin (b) with a growing subgrain boundary (c) in the high strain rate cryo-SPD sample after 1460 h of annealing.

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/content/aip/journal/apl/94/2/10.1063/1.3072595
2009-01-16
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Stabilizing nanostructured materials by coherent nanotwins and their grain boundary triple junction drag
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/2/10.1063/1.3072595
10.1063/1.3072595
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