Figure 14 shows the crack propagation process in in various sizes of the prior β grain. Fine prior β grains (fifigure 14(a)) containing small αcolonies of different orientations had much colony boundaries and α/β phase boundaries, by which the crack propagation could absorb more energy.
Figure 14 shows the crack propagation process in in various sizes of the prior β grain. Fine prior β grains (fifigure 14(a)) containing small αcolonies of different orientations had much colony boundaries and α/β phase boundaries, by which the crack propagation could absorb more energy.