Deformation twin formed by self-thickening, cross-slip mechanism in nanocrystalline Ni | Zendy

Xiaolei Wu | Zendy; J. Narayan | Zendy; Yuntian Zhu | Zendy

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Deformation twin formed by self-thickening, cross-slip mechanism in nanocrystalline Ni

Author(s) -

Xiaolei Wu,

J. Narayan,

Yuntian Zhu

Publication year - 2008

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2949685

Subject(s) - crystal twinning , slip (aerodynamics) , materials science , nucleation , nanocrystalline material , thickening , deformation mechanism , condensed matter physics , deformation (meteorology) , grain boundary , crystallography , composite material , metallurgy , nanotechnology , chemistry , microstructure , thermodynamics , physics , polymer science

We report the observation of a deformation twin formed by a recently proposed self-thickening, cross-slip twinning mechanism. This observation verifies one more twinning mechanism, in addition to those reported before, in nanocrystalline face-centered-cubic metals. In this mechanism, once the first Shockley partial is emitted from a grain boundary, and cross slips onto another slip plane, a deformation twin could nucleate and grow in both the primary and cross-slip planes without requiring the nucleation of additional Shockley partials from the grain boundary. © 2008 American Institute of Physics.

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