Direct dynamic atomic mechanisms of strain-induced grain rotation in nanocrystalline, textured, columnar-structured thin gold films

P. Liu; S. C. Mao; L. H. Wang; X. D. Han; Z. Zhang

doi:10.1016/j.scriptamat.2010.10.029

Direct dynamic atomic mechanisms of strain-induced grain rotation in nanocrystalline, textured, columnar-structured thin gold films

P. Liu, S. C. Mao, L. H. Wang, X. D. Han, Z. Zhang

Research output: Contribution to journal › Article › peer-review

120 Citations (Scopus)

Abstract

A thin film tensile technique with in situ atomic-scale observations was developed to directly characterize the atomic-scale plastic deformation mechanisms and fracture process of nanocrystalline gold thin films. The grain rotation accompanying the tensile fracture processes was studied at the atomic scale. Grain boundary disclination nucleation for accommodating inter-grain rotation plasticity was directly dynamically observed in situ. These results appear to support the concept of nucleation, growth and mobilization of disclinations for nanocrystalline plasticity by grain rotations.

Original language	English
Pages (from-to)	343-346
Number of pages	4
Journal	Scripta Materialia
Volume	64
Issue number	4
DOIs	https://doi.org/10.1016/j.scriptamat.2010.10.029
Publication status	Published - 2011 Feb

Keywords

Grain rotation
In situ atomic scale
Nanocrystalline
Thin films

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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title = "Direct dynamic atomic mechanisms of strain-induced grain rotation in nanocrystalline, textured, columnar-structured thin gold films",

abstract = "A thin film tensile technique with in situ atomic-scale observations was developed to directly characterize the atomic-scale plastic deformation mechanisms and fracture process of nanocrystalline gold thin films. The grain rotation accompanying the tensile fracture processes was studied at the atomic scale. Grain boundary disclination nucleation for accommodating inter-grain rotation plasticity was directly dynamically observed in situ. These results appear to support the concept of nucleation, growth and mobilization of disclinations for nanocrystalline plasticity by grain rotations.",

keywords = "Grain rotation, In situ atomic scale, Nanocrystalline, Thin films",

author = "P. Liu and Mao, {S. C.} and Wang, {L. H.} and Han, {X. D.} and Z. Zhang",

note = "Funding Information: This work was supported by the Key Project of the NSF of China ( 50831001 ), the National Excellent Young Scientist Foundation ( 10825419 ) and the Chinese National 973 Program ( 2009CB623700 ). Y.F. Zhang is acknowledged for assistance with the TEM experiments. ",

year = "2011",

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doi = "10.1016/j.scriptamat.2010.10.029",

language = "English",

volume = "64",

pages = "343--346",

journal = "Scripta Materialia",

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T1 - Direct dynamic atomic mechanisms of strain-induced grain rotation in nanocrystalline, textured, columnar-structured thin gold films

AU - Liu, P.

AU - Mao, S. C.

AU - Wang, L. H.

AU - Han, X. D.

AU - Zhang, Z.

N1 - Funding Information: This work was supported by the Key Project of the NSF of China ( 50831001 ), the National Excellent Young Scientist Foundation ( 10825419 ) and the Chinese National 973 Program ( 2009CB623700 ). Y.F. Zhang is acknowledged for assistance with the TEM experiments.

PY - 2011/2

Y1 - 2011/2

N2 - A thin film tensile technique with in situ atomic-scale observations was developed to directly characterize the atomic-scale plastic deformation mechanisms and fracture process of nanocrystalline gold thin films. The grain rotation accompanying the tensile fracture processes was studied at the atomic scale. Grain boundary disclination nucleation for accommodating inter-grain rotation plasticity was directly dynamically observed in situ. These results appear to support the concept of nucleation, growth and mobilization of disclinations for nanocrystalline plasticity by grain rotations.

AB - A thin film tensile technique with in situ atomic-scale observations was developed to directly characterize the atomic-scale plastic deformation mechanisms and fracture process of nanocrystalline gold thin films. The grain rotation accompanying the tensile fracture processes was studied at the atomic scale. Grain boundary disclination nucleation for accommodating inter-grain rotation plasticity was directly dynamically observed in situ. These results appear to support the concept of nucleation, growth and mobilization of disclinations for nanocrystalline plasticity by grain rotations.

KW - Grain rotation

KW - In situ atomic scale

KW - Nanocrystalline

KW - Thin films

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