Twinning partial multiplication at grain boundary in nanocrystalline fcc metals

Y. T. Zhu; X. L. Wu; X. Z. Liao; J. Narayan; S. N. Mathaudhu; L. J. Kecsḱs

doi:10.1063/1.3187539

Twinning partial multiplication at grain boundary in nanocrystalline fcc metals

Y. T. Zhu^*, X. L. Wu, X. Z. Liao, J. Narayan, S. N. Mathaudhu, L. J. Kecsḱs

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

113 Citations (Scopus)

Abstract

Most deformation twins in nanocrystalline face-centered cubic (fcc) metals have been observed to form from grain boundaries. The growth of such twins requires the emission of Shockley partials from the grain boundary on successive slip planes. However, it is statistically improbable for a partial to exist on every slip plane. Here we propose a dislocation reaction and cross-slip mechanism on the grain boundary that would supply a partial on every successive slip plane for twin growth. This mechanism can also produce a twin with macrostrain smaller than that caused by a conventional twin. © 2009 American Institute of Physics.

Original language	English
Article number	031909
Journal	Applied Physics Letters
Volume	95
Issue number	3
Online published	22 Jul 2009
DOIs	https://doi.org/10.1063/1.3187539
Publication status	Published - Jul 2009
Externally published	Yes

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title = "Twinning partial multiplication at grain boundary in nanocrystalline fcc metals",

abstract = "Most deformation twins in nanocrystalline face-centered cubic (fcc) metals have been observed to form from grain boundaries. The growth of such twins requires the emission of Shockley partials from the grain boundary on successive slip planes. However, it is statistically improbable for a partial to exist on every slip plane. Here we propose a dislocation reaction and cross-slip mechanism on the grain boundary that would supply a partial on every successive slip plane for twin growth. This mechanism can also produce a twin with macrostrain smaller than that caused by a conventional twin. {\textcopyright} 2009 American Institute of Physics.",

author = "Zhu, {Y. T.} and Wu, {X. L.} and Liao, {X. Z.} and J. Narayan and Mathaudhu, {S. N.} and Kecsḱs, {L. J.}",

year = "2009",

month = jul,

doi = "10.1063/1.3187539",

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volume = "95",

journal = "Applied Physics Letters",

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TY - JOUR

T1 - Twinning partial multiplication at grain boundary in nanocrystalline fcc metals

AU - Zhu, Y. T.

AU - Wu, X. L.

AU - Liao, X. Z.

AU - Narayan, J.

AU - Mathaudhu, S. N.

AU - Kecsḱs, L. J.

PY - 2009/7

Y1 - 2009/7

N2 - Most deformation twins in nanocrystalline face-centered cubic (fcc) metals have been observed to form from grain boundaries. The growth of such twins requires the emission of Shockley partials from the grain boundary on successive slip planes. However, it is statistically improbable for a partial to exist on every slip plane. Here we propose a dislocation reaction and cross-slip mechanism on the grain boundary that would supply a partial on every successive slip plane for twin growth. This mechanism can also produce a twin with macrostrain smaller than that caused by a conventional twin. © 2009 American Institute of Physics.

AB - Most deformation twins in nanocrystalline face-centered cubic (fcc) metals have been observed to form from grain boundaries. The growth of such twins requires the emission of Shockley partials from the grain boundary on successive slip planes. However, it is statistically improbable for a partial to exist on every slip plane. Here we propose a dislocation reaction and cross-slip mechanism on the grain boundary that would supply a partial on every successive slip plane for twin growth. This mechanism can also produce a twin with macrostrain smaller than that caused by a conventional twin. © 2009 American Institute of Physics.

UR - http://www.scopus.com/inward/record.url?scp=67651247347&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-67651247347&origin=recordpage

U2 - 10.1063/1.3187539

DO - 10.1063/1.3187539

M3 - RGC 21 - Publication in refereed journal

SN - 0003-6951

VL - 95

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 3

M1 - 031909

ER -

Twinning partial multiplication at grain boundary in nanocrystalline fcc metals

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