In situ x-ray investigation of freestanding nanoscale Cu-Nb multilayers under tensile load

C. C. Aydiner; D. W. Brown; N. A. Mara; J. Almer; A. Misra

doi:10.1063/1.3074374

In situ x-ray investigation of freestanding nanoscale Cu-Nb multilayers under tensile load

C. C. Aydiner, D. W. Brown, N. A. Mara, J. Almer, A. Misra

Chemical Engineering and Materials Science

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Abstract

The yield behavior in a freestanding sputter-deposited Cu/Nb multilayer with 30 nm nominal individual layer thickness has been investigated with in situ synchrotron x-ray diffraction during tensile loading. A pronounced elastic-plastic transition is observed with the fraction of plastically yielded grains increasing gradually with strain. Near synchronous yielding is observed in the Cu and Nb grains. The gradual progression in yield behavior is interpreted in terms of residual stresses, and elastic and plastic anisotropy.

Original language	English (US)
Article number	031906
Journal	Applied Physics Letters
Volume	94
Issue number	3
DOIs	https://doi.org/10.1063/1.3074374
State	Published - 2009

Bibliographical note

Funding Information:
C.C.A. acknowledges the support of NNSA’s Laboratory Directed Research and Development Program, the experimental assistance of Y.-C. Wang, J. Kevin Baldwin, J. J. Wall, and U. Lienert, and discussion with R. G. Hoagland and J. P. Hirth. Use of the Advanced Photon Source was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02–06CH11357. A.M. and his LANL collaborators acknowledge support from DOE, Office of Science, Office of Basic Energy Sciences.

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abstract = "The yield behavior in a freestanding sputter-deposited Cu/Nb multilayer with 30 nm nominal individual layer thickness has been investigated with in situ synchrotron x-ray diffraction during tensile loading. A pronounced elastic-plastic transition is observed with the fraction of plastically yielded grains increasing gradually with strain. Near synchronous yielding is observed in the Cu and Nb grains. The gradual progression in yield behavior is interpreted in terms of residual stresses, and elastic and plastic anisotropy.",

author = "Aydiner, {C. C.} and Brown, {D. W.} and Mara, {N. A.} and J. Almer and A. Misra",

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AU - Mara, N. A.

AU - Almer, J.

AU - Misra, A.

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AB - The yield behavior in a freestanding sputter-deposited Cu/Nb multilayer with 30 nm nominal individual layer thickness has been investigated with in situ synchrotron x-ray diffraction during tensile loading. A pronounced elastic-plastic transition is observed with the fraction of plastically yielded grains increasing gradually with strain. Near synchronous yielding is observed in the Cu and Nb grains. The gradual progression in yield behavior is interpreted in terms of residual stresses, and elastic and plastic anisotropy.

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In situ x-ray investigation of freestanding nanoscale Cu-Nb multilayers under tensile load

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