Proceedings of the 6th International Conference on Recrystallization and Grain Growth (ReX&GG 2016) pp 9-14 | Cite as
Grain Boundary, Triple Junction, and Quadruple Point Grain Growth Dynamics
Abstract
Grain boundaries, triple junctions, and quadruple points are the geometrical elements in 3-D polycrystalline networks, where these elements have co-dimensions 1, 2, and 3, respectively. Grain boundary mobility usually controls network kinetics in materials with “large” grain sizes. Nonetheless, there are studies concerning the effects of these network elements on the self-similar distributions of scaled grain size and number of faces per grain. This study applies a polyhedral representation of grains that the authors developed previously to obtain LSW-like (self-similar) behavior for distributions with three rate-limiting situations, viz., where the kinetics of network evolution is controlled by boundary, triple junction, or quadruple point mobility. The self-similar network states so obtained yield important implications concerning details of polycrystalline evolution, such as grain growth “trajectories”, grain lifetimes, and their volume-time behavior.
Keywords
microstructure grain growth triple junction quadruple point self-similarityPreview
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References
- 1.G. Gottstein and L.S. Shvindlerman, “Grain boundary junction engineering,” Scripta Materialia, 54 (2006), 1065–1070.CrossRefGoogle Scholar
- 2.P.R. Rios and M.E. Glicksman, “Grain boundary, triple junction and quadruple point mobility controlled normal grain growth,” Philosophical Magazine, 95 (2015), 2092–2127.CrossRefGoogle Scholar
- 3.P.R. Rios and M.E. Glicksman, “Topological and metrical analysis of normal grain growth in three dimensions,” Acta Materialia, 55 (2007), 1565–1571.CrossRefGoogle Scholar
- 4.P.R. Rios, T.G. Dalpian, V.S. Brandão, J.A. Castro, A.C.L. Oliveira, “Comparison of analytical grain size distributions with three-dimensional computer simulations and experimental data.” Scripta Materialia, 54 (2006), 1633–1637.CrossRefGoogle Scholar
- 5.D. Zöllner, “A Potts model for junction limited grain growth,” Computational Materials Science 50 (2011), 2712–2719.CrossRefGoogle Scholar
- 6.M.E. Glicksman and P.R. Rios, “Minimal network partitions using average N-hedra,” Philosophical Magazine, 87 (2007), 189–208.CrossRefGoogle Scholar
- 7.D. Zöllner, P. Streitenberger, P. R. Rios, “Shedding some light on the early grain growth regime: about the effect of the initial microstructure on normal grain growth,” Computational Materials Science, 113 (2016), 11–20.CrossRefGoogle Scholar