The nucleation and growth of nanovoids: Molecular dynamics calculations

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• Marc André Meyers, The University of California at San Diego
• Tuesday 18 January 2011, 11:15-12:15
• The Committee Room, The Bragg Building, Cavendish Laboratory, Department of Physics.

If you have a question about this talk, please contact Stephen Walley.

Ductile metals fail by the nucleation, growth, and coalescence of voids. We have identified the principal mechanisms by which nanosized voids grow: shear loops, prismatic loops and twinning. Although prismatic loops and twinning are well known deformation mechanisms, the emission and expansion of shear loops has a special requirement that the extremities remain attached to the void surface. Using molecular dynamics simulations, we can observe the expansion of the voids and the associated elementary deformation mechanisms.

This talk is part of the Physics and Chemistry of Solids Group series.

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