Evolution and interaction of dislocations in intermetallics: Fully anisotropic discrete dislocation dynamics simulations

TitleEvolution and interaction of dislocations in intermetallics: Fully anisotropic discrete dislocation dynamics simulations
Publication TypeBook Chapter
Year of Publication2007
AuthorsChen Q, Biner B
EditorWiezorek J, Fu CL, Takeyama M, Morris D, Clemens H
Book TitleAdvanced Intermetallic-Based Alloys
CityWarrendale
PublisherMaterials Research Society
Volume980
Pages107-112
Series TitleMaterials Research Society Symposium Proceedings
ISBN Number0272-9172978-1-55899-937
Accession NumberISI:000246437500016
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.