Back to Search
Start Over
Activation Free Energy of Nucleation of a Dislocation Pair in Magnesium
- Source :
- MATERIALS TRANSACTIONS. 54(5):680-685
- Publication Year :
- 2013
- Publisher :
- Mining and Materials Processing Institute of Japan, 2013.
-
Abstract
- Kink deformation is one of the possible principal deformation modes of alloys with a long-period stacking ordered structure under compression parallel to the basal plane. In this deformation, dislocation pairs are massively nucleated, and these dislocations align in a line to form kink bands. In this study, we investigated the nucleation of a dislocation pair in a pure magnesium single crystal by molecular dynamics simulations. We also evaluated the activation free energy of nucleation of a dislocation pair and investigated the dependence of the activation free energy on the applied shear stress and temperature. [doi:10.2320/matertrans.MI201213]
- Subjects :
- Materials science
Condensed matter physics
Mechanical Engineering
Stacking
Nucleation
Deformation (meteorology)
magnesium
Condensed Matter Physics
dislocation nucleation
Crystallography
Molecular dynamics
Condensed Matter::Materials Science
molecular dynamics simulation
Mechanics of Materials
Shear stress
metadynamics method
General Materials Science
Compression (geology)
Dislocation
Single crystal
activation free energy
Subjects
Details
- Language :
- English
- ISSN :
- 13459678
- Volume :
- 54
- Issue :
- 5
- Database :
- OpenAIRE
- Journal :
- MATERIALS TRANSACTIONS
- Accession number :
- edsair.doi.dedup.....e31b6a35e594a5ac025365f2fdd7443f