Hostname: page-component-cd9895bd7-dzt6s Total loading time: 0 Render date: 2024-12-27T01:34:33.114Z Has data issue: false hasContentIssue false
  • English
  • Français

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:
[email protected] LaborotaryMaterials and Engineering Physics208 Metals DevelopmentIowa State UniversityAmes IA 50011United States
Bulent Biner
Affiliation:
[email protected], Ames Laboratory(USDOE), Iowa State University, Ames, IA, 50011, United States
Get access

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Shi, X., Mahajan, S., Pollock, T.M. and Arunachalam, V.S., Phil. Mag. A. 79, 1555 (1999).Google Scholar
2. Liu, C.T., Stringer, J., Mundy, J.N., Horton, L.L., Angelini, P., Intermetallics 5, 579 (1997).Google Scholar
3. Gschneidner, K. Jr., Russell, A., Pecharsky, A., Morris, J.R., Zhang, Z., Lograsso, T., Hsu, D., Lo, C.H. C., Ye, Y., Slager, A. and Kesse, D., Nature Mat. 2, 587 (2003).Google Scholar
4. Mura, T., Phil. Mag. 3, 625 (1963).Google Scholar
5. Stroh, A.N., Phil. Mag. 3, 625 (1958).Google Scholar
6. Barnett, D.M., Phys. Stat. Sol. (b), 49, 741 (1972).Google Scholar
7. Chen, Q. and Biner, S.B. (to be published).Google Scholar
8. Chen, Q. and Biner, S. B., Acta Mater. 53, 3215 (2005)Google Scholar
9. W.Püschl, Phys. Stat. Sol. (a) 90, 181 (1985)Google Scholar