Record number :
1686328
Title of article :
Simulation of small-angle tilt grain boundaries and their response to stress
Author/Authors :
Cheng، نويسنده , , Yuanfeng and Weygand، نويسنده , , Daniel and Gumbsch، نويسنده , , Peter، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Pages :
5
From page :
783
To page :
787
Abstract :
The atomic structure and energy of small-angle tilt grain boundaries in bcc tungsten and fcc aluminum are determined by atomistic simulations. The results show the dependence of the arrangement of grain boundary dislocations and the grain boundary energy on the tilt axis, the misorientation angle between the two grains and the orientation of the grain boundary plane for investigated small-angle grain boundaries. Comparison is made with a dislocation model for grain boundaries. The response of the small-angle grain boundaries to external loading is simulated. It is found that the boundary may either migrate easily or not at all at the same applied loading, depending on the characteristics and the arrangement of the grain boundary dislocations.
Keywords :
Small-angle grain boundary , Dislocation , atomistic simulation
Journal title :
Computational Materials Science
Journal title :
Computational Materials Science
Serial Year :
2009
Link To Document :
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