Abstract
Atomistic simulations are performed on a series of grain boundary structures in aluminum. The grain boundary sliding (GBS) of symmetric tilt grain boundaries is always coupled with apparent migration when grain boundary is subjected to an applied shear stress. The propensity for `pure' GBS without migration in aluminum is evaluated by computing the energy associated with incremental equilibrium configurations during the sliding process, and comparing with energy barriers for sliding with migration. In both cases, the magnitude of the energy barriers are found to be lower than that of the energy for two free surfaces suggesting that the GBS and migration are more favorable than the formation of grain boundary cleavage under shear loading conditions.
Original language | English (US) |
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Pages | 53-62 |
Number of pages | 10 |
State | Published - 1998 |
Externally published | Yes |
Event | Proceedings of the 1998 TMS Annual Meeting - San Antonio, TX, USA Duration: Feb 15 1998 → Feb 19 1998 |
Other
Other | Proceedings of the 1998 TMS Annual Meeting |
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City | San Antonio, TX, USA |
Period | 2/15/98 → 2/19/98 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanics of Materials
- Metals and Alloys