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Radiation-induced solute segregation. [Ag--Zn] [electronic resource].

Published:
Argonne, Ill. : Argonne National Laboratory, 1976.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
Pages: 14 : digital, PDF file
Additional Creators:
Argonne National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
Substitional solute segregation in a fcc metal under irradiation was studied using a kinetic model. The model includes the effects of vacancy and dumbbell-interstitial diffusional encounters with solute atoms, diffusion of point defects and bound complexes, and spatially independent reaction terms. The GEAR package of subroutines was used for numerical solution of the resultant rate equations. Assuming thin-foil geometry and parameters appropriate for Zn in Ag, solute segregation is found to be significant in the temperature range from 0.2 to 0.6 T/sub m/, with maximum segregation occurring at approximately 0.45 T/sub m/. The temperature for maximum segregation is appreciably lower for reactor irradiation rates than for ion-bombardment or high-voltage electron-microscope irradiation rates. Segregation is also found to be maximum when the interstitial-solute binding energy is sufficiently high so that the migration energies of the vacancy and interstitial-solute complex becomes comparable. 6 fig.
Report Numbers:
E 1.99:conf-760421-10
conf-760421-10
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Note:
Published through SciTech Connect.
01/01/1976.
"conf-760421-10"
Conference on computer simulation for materials applications, Gaithersburg, MD, USA, 19 Apr 1976.
Johnson, R.A.; Lam, N.Q.
Funding Information:
W-31-109-ENG-38
View MARC record | catkey: 14460937