Quasi-Stationary Propagation of Dislocation Kink

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概要

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• Motion of kinks on a dislocation is analysed on the basis of the string model for the dislocation. The equation of the motion is expressed in terms of the mass M per unit length of the dislocation, the line tension T, the Peierls force and an external stress, where viscous resistances are neglected. The equation is solved numerically under the initial condition that the dislocation can cross over the Peierls barrier in the direction of the force due to the external stress with the minimum energy. The solution shows, 1) the kinks propagate quasi-stationarily, 2) the propagation velocity approaches √<T/M> nearly independently of the Peierls force and of the applied stress, 3) after long time the velocity component of dislocation segments in the direction normal to the dislocation line approaches the sound velocity, showing that the velocity-dependent mass should be taken into the string model.

• 社団法人日本物理学会の論文
• 1976-05-15

著者

• Sato Kazutaka

  Physics Laboratory Aichi Prefectural Junior College Of Nursing

• Sato Kazutaka

  Physics Labolatory Aichi Prefectural Junior College Of Nursing

• Sugiyama Akira

  Physics Labolatory. College Of General Education Nagoya University

関連論文

• Stationary Propagation of Kink in Dislocation
• Electron Density in Interior Far from Metal Surfaces
• Theory of Electronic Specific Heats of Dilute Alloys
• Theory of Valency Effect of Impurity Atoms on Hardening of Alloys
• Theory of Peierls Force of a Boundary Layer
• Statistical Velocity of Dislocation by Kink Formation Mechanism
• Calculation of Stacking Fault Energy by Use of Long-Range Interionic Potential. : I. Application of Ewald Method
• Quasi-Stationary Propagation of Dislocation Kink

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