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Elastic Distortion of Dislocations in Deforming FCC Crystals

Published online by Cambridge University Press:  20 September 2011

Mamdouh Mohamed ,
Anter El-Azab  and
B. C. Larson
Mamdouh Mohamed
Affiliation:
Department of Scientific Computing, Florida State University, Tallahassee, FL, USA
Anter El-Azab*
Affiliation:
Department of Scientific Computing, Florida State University, Tallahassee, FL, USA
B. C. Larson
Affiliation:
Materials Sciences and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
*
*Corresponding author. E-mail address: aelazab@fsu.edu
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Abstract

A computational technique is developed to predict the statistics of internal elastic fields of three-dimensional dislocation systems in deforming crystals. The internal elastic fields are computed based on 3D dislocation realizations generated by the method of dislocation dynamics simulation. Preliminary results are presented for the statistical characteristics of the elastic strain, lattice rotation and dislocation density tensor fields. The importance of the current analysis is discussed in the context of direct comparison of simulations with spatially resolved 3D X-ray microscopy measurements of lattice rotation and the dislocation density tensor.

Keywords

dislocationssimulationmetal
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1363: Symposium RR – Fundamental Science of Defects and Microstructure in Advanced Materials for Energy , 2011 , mrss11-1363-rr03-04
Copyright
Copyright © Materials Research Society 2011

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References

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