Abstract
Second-phase particles are often employed to inhibit the grain growth of polycrystalline materials. We studied the interaction between a second-phase particle and a grain boundary using the phase-field method. In particular, we determined the magnitude of pinning force exerted by a particle on a grain boundary. We considered the effect of particle morphology by examining several particle shapes including spherical, ellipsoidal and cubic. The pinning forces computed from the phase-field were compared with available analytical theories for spherical and ellipsoidal particle shapes. We derived an expression for the pinning force of a grain boundary by a cubic particle and compared the prediction with phase-field simulations. The present results should be useful for evaluating the effect of particle morphology on the effectiveness of grain growth inhibition by second-phase particles.
Original language | English (US) |
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Article number | 055004 |
Journal | Modelling and Simulation in Materials Science and Engineering |
Volume | 20 |
Issue number | 5 |
DOIs | |
State | Published - Jul 2012 |
All Science Journal Classification (ASJC) codes
- Modeling and Simulation
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Computer Science Applications