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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.tm.t52320225
EISBN: 978-1-62708-357-7
... Abstract This chapter reviews the fundamentals of classical nucleation theory, with application examples. The discussion covers the basic subjects of nucleation, spontaneous nucleation in solution, nucleation by inoculation, and nucleation in solids. nucleationNucleation...
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Published: 01 December 2008
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
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Published: 01 December 2008
Fig. 8.6 The disk model for interface nucleation (heterogeneous nucleation) More
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Published: 01 January 2015
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
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Published: 01 January 2015
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
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Published: 01 November 2010
Fig. 3.26 Nucleation and growth of spherulites in PEEK More
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Published: 01 August 1999
Fig. 11.15 (Part 4) (h) Nucleation and growth of grains of austenite from grains of δ ferrite that were formed during solidification of a weld. The dotted regions represent grains of austenite in the parent metal, and the solid lines indicate the grain boundaries of the ferrite formed during More
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Published: 01 August 2018
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
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Published: 01 August 2018
Fig. 16.23 The effect of the presence of TiN on ferrite nucleation in austenitic stainless steel. (a) No TiN addition, typical vermicular structure of ferrite (the micrograph is taken in a plane parallel to the primary axis of the dendrites). (b) Ti and N addition. Equiaxed grains of ferrite More
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Published: 01 September 2008
Fig. 12 Probable subsurface crack nucleation site in a surface-rolled ductile cast iron testpiece tested under bending-rotating conditions More
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Published: 01 September 2008
Fig. 27 (a) General view of the probable initial region of crack nucleation by fatigue crack. (b) Magnification of the region in the box at the left in (a). (c) Magnification of the region in the box at the right in (a) More
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Published: 01 December 2016
Fig. 1.12 Conditions for equiaxed grain nucleation ahead of solidification front. Source: Ref 27 More
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Published: 01 December 2016
Fig. 1.34 The (αAl + Si) eutectic nucleation and growth in AlSi alloys. (a) Unmodified alloy. Eutectic grain nucleates at the αAl solid solution dendrite tip; local heat flow is consistent with the growth direction. (b) Alloy modified with strontium. Eutectic nucleates individually More
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Published: 01 December 2016
Fig. 1.35 Effect of modifiers on αAl and silicon nucleation in aluminum-silicon alloy. 1, Aluminum nucleation in the presence of unidentified additions; 2, Silicon nucleation in the presence of AlP; 3, Silicon nucleation in the presence of AlNaSi; 4, Silicon nucleation in the presence More
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Published: 01 March 2012
Fig. 2.13 Nucleation and growth during solidification. Source: Ref 2.2 More
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Published: 01 March 2012
Fig. 2.14 Free-energy curves for homogeneous nucleation. Source: Ref 2.2 More
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Published: 01 March 2012
Fig. 8.11 (a) Pearlite nucleation. (b) Colony growth. (c) Deep-etched steel sample showing pearlite colony growth from a proeutectoid cementite plate. Source: Ref 8.8 as published in Ref 8.1 More
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Published: 01 March 2012
Fig. 9.16 Regions of spinodal decomposition and classical nucleation and growth of precipitates. (a) Phase diagram with a miscibility gap. (b) Variation in free energy with composition for the system shown in (a) at temperature T ′. Source: Ref 9.9 as published in Ref 9.10 More
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Published: 01 January 2015
Fig. 4.8 Variation of nucleation and growth rates for pearlite formation as a function of temperature in a eutectoid steel. Source: Ref 4.12 More
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Published: 01 January 2015
Fig. 8.5 Nucleation sites for austenite formation in microstructures of (a) ferrite, (b) spheroidite, and (c) pearlite. Source: Ref 8.10 More