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Dislocation Nucleation and Dynamics at Sliding Interfaces

Published online by Cambridge University Press:  10 February 2011

R. P. Mikulla
Affiliation:
Applied Theoretical and Computational Physics Division, Los Alamos National Laboratory. Los Alamos, NM, 87544
J. E. Hiammerberg
Affiliation:
Applied Theoretical and Computational Physics Division, Los Alamos National Laboratory. Los Alamos, NM, 87544
P. S. Lomdahl
Affiliation:
Theoretical Division. Los Alamos National Laboratory, Los Alamos, NM. 87544
B. L. Holian
Affiliation:
Theoretical Division. Los Alamos National Laboratory, Los Alamos, NM. 87544
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Abstract

Using large-scale molecular-dynamics simulations in two dimensions, we have observed interesting dislocation generation and dynamics at the interface between two smooth metallic surfaces. sliding relative to one another. The early-time behavior is related to later-time nanocrystalline structure at the interface whose formation is related to velocity-weakening in the coefficient of friction. We discuss the differences between frictional dislocation behavior in two and three dimensions.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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References

[1] Rigney, D. A., Ann. Rev. Mater. Sci.,18, 141163 (1988).Google Scholar
[2] Rigney, D. A., Divakar, R. and Kuo, S.M., Scripta Metall., 27 975980 (1992).Google Scholar
[3] Rigney, D. A. and Hammerberg, J. E., Bull. Mater. Res. Soc., 23 (6), (1998)Google Scholar
[4] Hammerberg, J. E., Holian, B. L., Röder, J., Bishop, A. R., Zhou, S. J., Physica D (1998, to be published).Google Scholar
[5] Holian, B. L., Hammerberg, J. E. and Lomdahl, P. S., J.Computer-Aided Mater. Design (1998, to be published).Google Scholar
[6] Röder, J., Hammerberg, J. E., Holian, B. L. and Bishop, A. R., Phys. Rev. B, 57,27542766 (1998).Google Scholar
[7] Röder, J. (to be published).Google Scholar