Energetics of Slip Deformation in Beta-Sn: A First-Principles Study

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The generalized stacking fault (GSF) energy surfaces of (110), (101), (121), (001), and(100) planes in -Sn are analyzed using first-principles density functional theory calculations. Fromthe minimum energy paths (MEPs) on the GSF energy surfaces analyzed, energetically preferableslip paths of 13 nonequivalent slip systems in -Sn are investigated. It is found that the MEP of(110)[111]/2, (101)[010], (101)[111]/2, (121)[101], and (121)[111]/2 deviates from the straight linepath and takes a curve line path. The results indicate that perfect dislocations on these five slip systemsdissociate into partial dislocations as in cubic and hexagonal crystals.

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Edited by:

Yeong-Maw Hwang and Cho-Pei Jiang

Pages:

46-49

Citation:

Y. Kinoshita and N. Ohno, "Energetics of Slip Deformation in Beta-Sn: A First-Principles Study", Key Engineering Materials, Vol. 626, pp. 46-49, 2015

Online since:

August 2014

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$38.00

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