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Dislocation Dynamics Simulations of Dislocation Interactions in Thin Fcc Metal Films

Published online by Cambridge University Press:  18 March 2011

Prita Pant ,
K.W. Schwarz  and
S.P. Baker
Prita Pant
Affiliation:
Materials Science & Engineering Department, Cornell University, Ithaca, NY 14853
K.W. Schwarz
Affiliation:
IBM Research, Yorktown Heights, NY, 10598
S.P. Baker
Affiliation:
Materials Science & Engineering Department, Cornell University, Ithaca, NY 14853
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Abstract

Mesoscopic simulations of dislocation interactions in thin, single crystal FCC metal films were carried out. Interactions between threading-misfit and threading-threading dislocation pairs were studied and the strength of the interactions determined. Threading-threading interactions were found to be significantly stronger than threading-misfit interactions. Dislocations with different possible combinations of Burgers vectors were studied under cyclic loading. Only annihilation of dislocations was seen to result in residual dislocation structure after complete unloading. No differences were observed in the nature of threading-misfit interactions in 111 and 001 oriented films.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 673: Symposium P – Dislocations and Deformation Mechanisms in Thin Films and Small Structures , 2001 , P2.2
Copyright
Copyright © Materials Research Society 2001

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References

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