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Evolution and Interaction of Dislocations in Intermetallics: Fully Anisotropic Discrete Dislocation Dynamics Simulations

Published online by Cambridge University Press:  26 February 2011

Qian Chen  and
Bulent Biner
Qian Chen
Affiliation:
sbbiner@iastate.eduAmes LaborotaryMaterials and Engineering Physics208 Metals DevelopmentIowa State UniversityAmes IA 50011United States
Bulent Biner
Affiliation:
sbbiner@iastate.edu, Ames Laboratory(USDOE), Iowa State University, Ames, IA, 50011, United States
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Abstract

In this study, the origin of large ductility that is seen in recently discovered rare-earth intermetallic compounds: YCu, YAg and YZn is explored by using fully anisotropic 3D dislocation dynamics simulations. The stability of the glide dislocations, the behavior of the Frank-Read sources and the strength of junctions are evaluated and compared to those seen for the common intermetallics, NiAl and Fe-25Al.

Keywords

dislocationssimulationmicrostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 980: Symposium II – Advanced Intermetallic-Based Alloys , 2006 , 0980-II05-16
Copyright
Copyright © Materials Research Society 2007

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References

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