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Title: Spatially Resolved MicroDiffraction Analysis of the Plastic Deformation in the Shock Recovered Al Single Crystal

Abstract

A spatially resolved diffraction method with a sub micrometer-diameter beam and 3D differential aperture technique together with MD simulations, SEM and OIM analysis are applied to understand the arrangements of voids, geometrically necessary dislocations and strain gradient distribution in samples of Al (123) single crystal shocked to incipient spallation fracture. We describe how geometrically necessary dislocations and effective strain gradient alter white beam Laue patterns of the shocked materials. We show how to quantitatively determine the orientation and density of geometrically necessary dislocations in the shock recovered Al samples being initially oriented for single slip.

Authors:
; ; ; ;  [1]
  1. ORNL
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
USDOE
OSTI Identifier:
1008997
Resource Type:
Conference
Resource Relation:
Conference: Materials in Extreme Environments;;
Country of Publication:
United States
Language:
ENGLISH
Subject:
36 MATERIALS SCIENCE; APERTURES; DEFORMATION; DIFFRACTION METHODS; DISLOCATIONS; DISTRIBUTION; MONOCRYSTALS; ORIENTATION; PLASTICS; SLIP; SPALLATION; STRAINS

Citation Formats

Barabash, R I, Ice, G E, Liu, W, Belak, J, and Kumar, M. Spatially Resolved MicroDiffraction Analysis of the Plastic Deformation in the Shock Recovered Al Single Crystal. United States: N. p., 2007. Web.
Barabash, R I, Ice, G E, Liu, W, Belak, J, & Kumar, M. Spatially Resolved MicroDiffraction Analysis of the Plastic Deformation in the Shock Recovered Al Single Crystal. United States.
Barabash, R I, Ice, G E, Liu, W, Belak, J, and Kumar, M. Wed . "Spatially Resolved MicroDiffraction Analysis of the Plastic Deformation in the Shock Recovered Al Single Crystal". United States.
@article{osti_1008997,
title = {Spatially Resolved MicroDiffraction Analysis of the Plastic Deformation in the Shock Recovered Al Single Crystal},
author = {Barabash, R I and Ice, G E and Liu, W and Belak, J and Kumar, M},
abstractNote = {A spatially resolved diffraction method with a sub micrometer-diameter beam and 3D differential aperture technique together with MD simulations, SEM and OIM analysis are applied to understand the arrangements of voids, geometrically necessary dislocations and strain gradient distribution in samples of Al (123) single crystal shocked to incipient spallation fracture. We describe how geometrically necessary dislocations and effective strain gradient alter white beam Laue patterns of the shocked materials. We show how to quantitatively determine the orientation and density of geometrically necessary dislocations in the shock recovered Al samples being initially oriented for single slip.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {12}
}

Conference:
Other availability
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