Atomistic Simulations of Screw Dislocations in Copper

Yinon Ashkenazy, Itzhak Kelson, Guy Makov, Dan Mordehai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Properties of dissociated and constricted screw dislocations in Cu are simulated using molecular dynamics. The calculations are done using the Parinello-Ray-Rahman isothermal constant stress method and a potential based on the second moment approximation (SMA). The core structure of the dislocation and its response to external shear stress and temperature are described. The threshold stresses required for the activation of dynamic processes are identified. Qualitative and quantitative characteristics of the dislocation structure and its dynamics are compared to theory and to experimental results.
Original languageEnglish
Title of host publication American Physical Society, Annual March Meeting, March 20-24, 2000 Minneapolis, MN
StatePublished - 1 Mar 2000
Externally publishedYes

Publication series

NameAmerican Physical Society, Annual March Meeting, March 20-24, 2000 Minneapolis, MN

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