Open AccessINTERACTION POTENTIAL FIELD BETWEEN A GEOMET-RICAL KINK AND A POINT DEFECT
Author(s) -
Zhibin Sun
Publication year - 1992
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.41.1980
Subject(s) - dislocation , isotropy , condensed matter physics , materials science , physics , crystallographic defect , field (mathematics) , point (geometry) , vacancy defect , relaxation (psychology) , peierls stress , dislocation creep , geometry , optics , mathematics , psychology , social psychology , pure mathematics
A vector expression of the dilatotion field of a segment of dislocation line was obtained with isotropic elasticity. The interaction potential field between a geometric kink, made of straight segments or a smooth curve of dislocation, and a point defect was thus obtained. The distribution of the potential along the dislocation tube for different types and widths of kink was calculated numerically.The possibility of the dislocation relaxation associated with the interaction between a mobile vacancy and the geometric kink on screw and mixed dislocations was analysed.