Atomic-level study of twin nucleation from face-centered-cubic/body- centered-cubic interfaces in nanolamellar composites

W. Z. Han; J. S. Carpenter; J. Wang; I. J. Beyerlein; N. A. Mara

doi:10.1063/1.3675447

Atomic-level study of twin nucleation from face-centered-cubic/body- centered-cubic interfaces in nanolamellar composites

W. Z. Han, J. S. Carpenter, J. Wang, I. J. Beyerlein, N. A. Mara

Chemical Engineering and Materials Science

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Abstract

We report deformation twinning in Cu within accumulative roll-bonded Cu-Nb nanolamellar composites. Twins appear connected to the Nb{112}//Cu{112} interface with the Kurdjumov-Sachs orientation relationship, which we show to be ordered and faceted. The interface adopts a different faceted structure after twinning. Our analysis suggests that deformation twinning involves facet dissociation and slip-transfer from the Nb layer to the Cu layer due to a geometrically favorable slip transmission pathway.

Original language	English (US)
Article number	011911
Journal	Applied Physics Letters
Volume	100
Issue number	1
DOIs	https://doi.org/10.1063/1.3675447
State	Published - Jan 2 2012

Bibliographical note

Funding Information:
This work is partially sponsored by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Energy Frontier Research Center (EFRC) under Award No. 2008LANL1026, and by the Los Alamos National Laboratory Directed Research and Development (LDRD) project DR20110029. The authors thank Dr. S. N. Luo, Dr. R. F. Zhang, Dr. K. Kang and Dr. S. J. Zheng for stimulating discussions.

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title = "Atomic-level study of twin nucleation from face-centered-cubic/body- centered-cubic interfaces in nanolamellar composites",

abstract = "We report deformation twinning in Cu within accumulative roll-bonded Cu-Nb nanolamellar composites. Twins appear connected to the Nb{112}//Cu{112} interface with the Kurdjumov-Sachs orientation relationship, which we show to be ordered and faceted. The interface adopts a different faceted structure after twinning. Our analysis suggests that deformation twinning involves facet dissociation and slip-transfer from the Nb layer to the Cu layer due to a geometrically favorable slip transmission pathway.",

author = "Han, {W. Z.} and Carpenter, {J. S.} and J. Wang and Beyerlein, {I. J.} and Mara, {N. A.}",

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AU - Wang, J.

AU - Beyerlein, I. J.

AU - Mara, N. A.

N1 - Funding Information: This work is partially sponsored by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Energy Frontier Research Center (EFRC) under Award No. 2008LANL1026, and by the Los Alamos National Laboratory Directed Research and Development (LDRD) project DR20110029. The authors thank Dr. S. N. Luo, Dr. R. F. Zhang, Dr. K. Kang and Dr. S. J. Zheng for stimulating discussions.

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N2 - We report deformation twinning in Cu within accumulative roll-bonded Cu-Nb nanolamellar composites. Twins appear connected to the Nb{112}//Cu{112} interface with the Kurdjumov-Sachs orientation relationship, which we show to be ordered and faceted. The interface adopts a different faceted structure after twinning. Our analysis suggests that deformation twinning involves facet dissociation and slip-transfer from the Nb layer to the Cu layer due to a geometrically favorable slip transmission pathway.

AB - We report deformation twinning in Cu within accumulative roll-bonded Cu-Nb nanolamellar composites. Twins appear connected to the Nb{112}//Cu{112} interface with the Kurdjumov-Sachs orientation relationship, which we show to be ordered and faceted. The interface adopts a different faceted structure after twinning. Our analysis suggests that deformation twinning involves facet dissociation and slip-transfer from the Nb layer to the Cu layer due to a geometrically favorable slip transmission pathway.

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Atomic-level study of twin nucleation from face-centered-cubic/body- centered-cubic interfaces in nanolamellar composites

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