First-Principles Studies on Grain Boundary Energies of [110] Tilt Grain Boundaries in Aluminum

Abstract:

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The grain boundary structure and its energy are necessary for the fundamental understanding of the physical properties of materials. In aluminum, three distinct atomic structures of a Σ9(221)[110] tilt grain boundary have been reported in previous studies using atomistic simulations and a high-resolution transmission electron microscopy (HRTEM). In this work, we studied the atomic structure and energy of the Σ9 tilt grain boundary in aluminum using first-principles calculations. A comparison of the grain boundary energies among the three distinct Σ9 tilt grain boundaries determined through first-principles calculations allowed us to identify the most stable atomic structure of Σ9 tilt grain boundary in aluminum.

Info:

Periodical:

Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

1837-1840

DOI:

10.4028/www.scientific.net/MSF.561-565.1837

Citation:

Y. Inoue et al., "First-Principles Studies on Grain Boundary Energies of [110] Tilt Grain Boundaries in Aluminum", Materials Science Forum, Vols. 561-565, pp. 1837-1840, 2007

Online since:

October 2007

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$35.00

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