TY  - JOUR
T1  - Anisotropic Effect on Elastic Interaction Between Dislocation and General Grain Boundaries in Some Hexagonal Metals: Be,Y, Zn
AU - , M. Toubane AU - , O. Khalfallah 
JO  - Journal of Engineering and Applied Sciences
VL  - 2
IS  - 12
SP  - 1777
EP  - 1781
PY  - 2007
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2007.1777.1781
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2007.1777.1781
KW  - Gains boundaries
KW  -dislocation
KW  -anisotropic elasticity
KW  -elastic interaction
KW  -image force
KW  -metal
AB  - In this study, we examine the anisotropic effect on elastic interaction between dislocations and general grain boundaries for hexagonal metals; Be Y and Zn. In the setting of the anisotropic linear elasticity in continuous media the calculations of the elastic interaction energy  E have been gotten by Head then to be improved by Barnett and Lothe. The dislocations in elastic interaction with a grain boundary in a bicrystal of an elastically anisotropic material are submitted to an image force Fi = - E/d. The results are represented in isoenergy cards on a stereographic projection. The result showed that the interaction energy is inversely depends to the factor of anisotropy H. The maximal energy of interaction is lower then 14 pJ m <SUP>1</SUP> its always weaker compared to the case of the cubic metals where it is of the order of 100 pJ m <SUP>1</SUP>. The image force can be attractive repulsive or null. The proportion of attracted dislocations depends to the disorientation and the factor of anisotropy H.
ER  -