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X-ray Microbeam Investigation of Deformation Microstructure in Microindented Cu

Published online by Cambridge University Press:  15 February 2011

Wenge Yang ,
B. C. Larson ,
G. M. Pharr ,
G. E. Ice ,
J. Z. Tischler ,
J. D. Budai  and
Wenjun Liu
Wenge Yang
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
B. C. Larson
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
G. M. Pharr
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 University of Tennessee, Knoxville, Tennessee 37996
G. E. Ice
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
J. Z. Tischler
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
J. D. Budai
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
Wenjun Liu
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
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Abstract

The deformation microstructure under spherical microindents in single crystal Cu has been investigated with submicron spatial resolution using x-ray structural microscopy. A polychromatic, submicron diameter (∼ 0.5 μm) microbeam was used in combination with micronresolution depth profiling to make direct, nondestructive measurements of plastic deformation induced lattice rotations under an indent made with a 69 μm radius spherical indenter and 200 mN maximum load. Lattice orientations relative to the undeformed crystal were determined as a function of position under the indent using differential-aperture x-ray structural microscopy (DAXM). Rotation-axes and misorientation-angles were determined for micron steps along selected microbeam penetration directions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 779: Symposium W – Multiscale Phenomena in Materials - Experiments and Modeling Related to Mechanical Behavior , 2003 , W5.34
Copyright
Copyright © Materials Research Society 2003

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