Abstract
Molecular statics simulations are used in conjunction with the Embedded Atom Method to study the segregation tendency of magnesium and the effect of doping on aluminum symmetric tilt grain boundaries (STGB). It is observed that a state of hydrostatic stress exists predominantly near the grain boundary and influences the segregation energy of magnesium. The origin of hydrostatic stress is explained in terms of local geometrical arrangement of atoms at the grain boundary. The energy of a given grain boundary is found to increase with addition of Mg atoms and the increase depends on the normal distance of the atom from the grain boundary.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 387-392 |
| Number of pages | 6 |
| Journal | Materials Science Forum |
| Volume | 357-359 |
| State | Published - 2001 |
| Externally published | Yes |
| Event | Superplasticity in Advanced Materials (ICSAM-2000) - Orlando, FL, United States Duration: Aug 1 2000 → Aug 4 2000 |
All Science Journal Classification (ASJC) codes
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Keywords
- Grain boundary energy
- Hydrostatic stress
- Segregation