Effect of impurities on dynamic dragging of dislocations

The rearrangement of the force of dynamic dragging of a dislocation due to its elastic interactio in with impurity atoms is analysed. The collisions of a moving dislocation with impurities excite additional vibrations of a dislocation line. Such vibrations lead to the appearance of extra parts to di...

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Veröffentlicht in:	Crystal research and technology (1979) 1984, Vol.19 (6), p.763-768
Hauptverfasser:	Natsik, V. D., Chishko, K. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Defects and impurities in crystals microstructure Elasticity. Plasticity Electron states Exact sciences and technology Interaction between different crystal defects gettering effect Linear defects: dislocations, disclinations Mechanical and acoustical properties of condensed matter Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Physics Structure of solids and liquids crystallography Theories and models of many electron systems
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Beschreibung
Zusammenfassung:	The rearrangement of the force of dynamic dragging of a dislocation due to its elastic interactio in with impurity atoms is analysed. The collisions of a moving dislocation with impurities excite additional vibrations of a dislocation line. Such vibrations lead to the appearance of extra parts to dissipative function and effective friction force of a dislocation which depend on location and concentration of impurities. This effect is one of the reasons of the influence of impurities observed in the experiments on the dynamic branch of the moving dislocation curve. [Russian Text Ignore]
ISSN:	0232-1300 1521-4079
DOI:	10.1002/crat.2170190606