Search Results for nucleation

Fig. 8.5 The lens model for interface nucleation (heterogeneous nucleation). (a) Critical nucleus of interface nucleation. (b) Energy of critical nucleus. (c) Change in free energy according to nucleation. More

Fig. 8.6 The disk model for interface nucleation (heterogeneous nucleation) More

Fig. 3.17. Grain-boundary crack-nucleation mechanisms: (a) triple-junction cracking; (b) cavitation at particles ( Ref 87 ). More

Fig. 3.26 Nucleation and growth of spherulites in PEEK More

Fig. 7.12 Simplified scheme of the nucleation and growth mechanism of pearlite. Transverse section to the ferrite and cementite plates (lamellae). (a) Carbide nucleates in an austenitic grain boundary. The surrounding region becomes carbon depleted, favoring the nucleation of ferrite More

Fig. 9.78 Nucleation of a grain of idiomorphic ferrite (IGF) in a nonmetallic inclusion during isothermal transformation at 600 °C (1110 °F). The sample was heated at 1,400 °C (2550 °F) and then held at 1100 °C (2010 °F) to precipitate and grow MnS inclusions. To avoid the effects of fast More

Fig. 2.3 Solidification of ingots and large castings involves nucleation, growth of small surface grains, preferred growth of columnar grains, and finally, growth of smaller equiaxed grains. Reprinted with permission from Ref 2.5 More

Fig. 2.4 Freezing of a uniformly cooled alloy liquid involves nucleation, grain growth, and variable composition within each grain. Each dendrite develops branches along three sets of axes, each at 90° to the other. Only two sets of axes are shown here; the third set is at right angles More

Fig. 3 Schematic showing the nucleation of γ′- and ε-nitrides on iron. Source: Ref 2 More

Fig. 12.4 Fiber nucleation of spherulitic crystal growth in a high-temperature, lightly cross-linked thermoplastic-matrix composite. Micrographs were taken from ultrathin sections of the unidirectional carbon fiber composite. (a) Sectioned through the thickness and perpendicular to the fiber More

Fig. 5-25 Schematic illustration of the nucleation and growth of carbides in martensite, and the formation of ferrite More

Fig. 9-13 Schematic Illustration of the temperature dependence of the nucleation rate More

Fig. 9-17 Experimental values of the nucleation rate N and the growth rate G as a function of transformation temperature for the formation of pearlite in an 0.8% C eutectoid steel. (From same source as Fig. 9-16 ) More

Fig. 4.4 Nucleation and growth during solidification More

Fig. 4.5 Free-energy curves for homogeneous nucleation More

Fig. 8.13 Nucleation and growth of grains. Source: Ref 6 More

Fig. 8.14 Nucleation and growth rates during recrystallization. Source: Ref 4 More

Fig. 13 Optical micrographs showing the nucleation and growth of a mode I fatigue crack in the plane of the notch as a result of cyclic compression loading in high-impact polystyrene. (a) Crazing before fatigue cycling. (b) Nucleation of fatigue crack after 15,000 cycles. (c) Crack growth More

Fig. 2.13 Nucleation and growth during solidification. Source: Ref 2.2 More