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Energy grain boundary

Applications to the calculation of static grain boundary energies have been described elsewhere [9,10,14],... [Pg.347]

Figure 6.7 Average grain boundary energy, y b, surface energy of crystals at 0 K, ysS, and surface tension of liquid Al, Ag, Au, Ni and Pt as a function of melting temperature 7W 2/3[8, 11],... Figure 6.7 Average grain boundary energy, y b, surface energy of crystals at 0 K, ysS, and surface tension of liquid Al, Ag, Au, Ni and Pt as a function of melting temperature 7W 2/3[8, 11],...
The distribution of the liquid is determined by the interfacial energy between the liquid and the solid matrix relatively to the grain boundary energy. An example is shown in Figure 6.11 (a), where an important characteristic of grain boundaries, the... [Pg.173]

Figure 3-9. Grain boundary energies in aluminum. Rotation axis of the (symmetric) tilt boundary is <110) [after G. Hasson, C. Goux (1971)]. Figure 3-9. Grain boundary energies in aluminum. Rotation axis of the (symmetric) tilt boundary is <110) [after G. Hasson, C. Goux (1971)].
The grain boundary energy 7gb should be proportional to . For small values of high coincidence occurs and the number of broken bonds can be minimized. = 1 corresponds to complete coincidence of the ideal crystal. Experimentally it was found that the correlation between 7Gb and is not that simple due to volume expansions or translations at the grain boundaries. A principal problem of the coincident site lattice model is that, even arbitrarily small variations of the lattice orientation lead mathematically to a complete loss of coincidence. This is physically not reasonable because an arbitrarily small deviation should have a small effect. This problem was solved by the O-lattice theory [343], For a comprehensive treatment of solid-solid interfaces and grain boundaries, see Refs. [344,345],... [Pg.161]

Similar relations can be used to find the twin boundary energy from the grain boundary energy and the boundary energy between two phases from the energy of a grain boundary in one of them. [Pg.130]

GRAIN BOUNDARY ENERGY AND SURFACE ENERGY CONTRIBUTIONS 73... [Pg.73]

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