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Philosophical Magazine A Volume 59, 1989 - Issue 5
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Original Articles

Disclination-structural unit model of grain boundaries

V. Yu. Gertsman Institute of the Metal Superplasticity Problems, U.S.S.R. Academy of Sciences, Ufa, 450001, U.S.S.R.
,
A. A. Nazarov Institute of the Metal Superplasticity Problems, U.S.S.R. Academy of Sciences, Ufa, 450001, U.S.S.R.
,
A. E. Romanov Institute of the Metal Superplasticity Problems, U.S.S.R. Academy of Sciences, Ufa, 450001, U.S.S.R.
,
R. Z. Valiev Institute of the Metal Superplasticity Problems, U.S.S.R. Academy of Sciences, Ufa, 450001, U.S.S.R.
&
V. I. Vladimirov dR A. F. loffe Physico-Technical Institute, U.S.S.R. Academy of Sciences, Leningrad, 194021, U.S.S.R.
Pages 1113-1118 | Received 09 Dec 1987, Accepted 26 May 1988, Published online: 20 Aug 2006
 
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Abstract

On the basis of a critical analysis of Li's disclination model of large-angle boundaries, the disclination-structural unit model is developed, combining both the atomistic and the mesoscopic levels of description of the grain-boundary structure. The curve of energy against misorientation angle for symmetrical [001] tilt boundaries in aluminium has been obtained and this agrees well with the experimental data and computer simulation results.

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Related Research Data

Structure of Grain Boundaries. Theoretical Determination and Experimental Observations
Source: Springer US
Energy of grain boundaries between cusp misorientations
Source: Elsevier BV
On the Structure of Tilt Grain Boundaries in Cubic Metals I. Symmetrical Tilt Boundaries
Source: The Royal Society
Theoretical and experimental determinations of grain boundary structures and energies: Correlation with various experimental results
Source: Elsevier BV
Probing grain boundary sink strength at the nanoscale: Energetics and length scales of vacancy and interstitial absorption by grain boundaries in α -Fe
Source: American Physical Society (APS)

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