Solidification of containerless undercooled melts / edited by Dieter M. Herlach and Douglas M. Matson.

Format:

Book

Contributor:

Herlach, D. M.

Matson, Douglas M.

Language:

English

Subjects (All):

Solidification.

Physical Description:

1 online resource (579 p.)

Edition:

1st ed.

Place of Publication:

Weinheim : Wiley-VCH Verlag GmbH & Co. KGaA, c2012.

Language Note:

English

Summary:

All metallic materials are prepared from the liquid state as their parent phase. Solidification is therefore one of the most important phase transformation in daily human life. Solidification is the transition from liquid to solid state of matter. The conditions under which material is transformed determines the physical and chemical properties of the as-solidified body. The processes involved, like nucleation and crystal growth, are governed by heat and mass transport.Convection and undercooling provide additional processing parameters to tune the solidification process and to control sol

Contents:

Solidification of Containerless Undercooled Melts; Contents; References; Nucleation; Preface; List of Contributors; 1 Containerless Undercooling of Drops and Droplets; 1.1 Introduction; 1.2 Drop Tubes; 1.2.1 Short Drop Tubes; 1.2.2 Long Drop Tubes; 1.3 Containerless Processing Through Levitation; 1.3.1 Electromagnetic Levitation; 1.3.2 Electrostatic Levitation; 1.3.3 Electromagnetic Levitation in Reduced Gravity; 1.4 Summary and Conclusions; References; 2 Computer-Aided Experiments in Containerless Processing of Materials; 2.1 Introduction; 2.1.1 Nomenclature; 2.2 Planning Experiments

2.2.1 Example: Feasible Range of Conditions to Test Theory of Coupled-Flux Nucleation2.2.2 Example: The Effect of Fluid Flow on Phase Selection; 2.3 Operating Experiments; 2.4 Data Reduction, Analysis, Visualization, and Interpretation; 2.4.1 Example: Noncontact Measurement of Density and Thermal Expansion; 2.4.2 Example: Noncontact Measurement of Creep; 2.5 Conclusion; References; 3 Demixing of Cu-Co Alloys Showing a Metastable Miscibility Gap; 3.1 Introduction; 3.2 Mechanism of Demixing; 3.3 Demixing Experiments in Terrestrial EML and in Low Gravity; 3.4 Demixing Experiments in a Drop Tube

3.5 Spinodal Decomposition in Cu-Co Melts3.6 Conclusions; References; 4 Short-Range Order in Undercooled Melts; 4.1 Introduction; 4.2 Experiments on the Short-Range Order of Undercooled Melts; 4.2.1 Experimental Techniques; 4.2.2 Structure of Monatomic Melts; 4.2.3 Structure of Alloy Melts; 4.3 Conclusions; References; 5 Ordering and Crystal Nucleation in Undercooled Melts; 5.1 Introduction; 5.2 Nucleation Theory

Some Background; 5.2.1 Classical Nucleation Theory; 5.2.1.1 Homogeneous Steady-State Nucleation; 5.2.1.2 Heterogeneous Nucleation

5.2.2 Nucleation Models that Take Account of Ordering5.2.2.1 Diffuse-Interface Model; 5.2.2.2 Density-Functional Models; 5.3 Liquid Metal Undercooling Studies; 5.3.1 Experimental Techniques; 5.3.2 Selected Experimental Results; 5.3.2.1 Maximum-Undercooling Data; 5.3.2.2 Nucleation Rate Measurements; 5.4 Coupling of Ordering in the Liquid to the Nucleation Barrier; 5.4.1 Icosahedral Ordering; 5.4.2 Coupling of Ordering and Nucleation Barrier; 5.4.3 Ordering in the Liquid Adjacent to a Heterogeneity; 5.5 Conclusions

6 Phase-Field Crystal Modeling of Homogeneous and Heterogeneous Crystal Nucleation6.1 Introduction; 6.2 Phase-Field Crystal Models; 6.2.1 Free Energy Functionals; 6.2.2 Euler-Lagrange Equation and the Equation of Motion; 6.3 Homogeneous Nucleation; 6.3.1 Solution of the Euler-Lagrange Equation; 6.3.2 Solution of the Equation of Motion; 6.4 PFC Modeling of Heterogeneous NuCleation; 6.5 Summary; References; 7 Effects of Transient Heat and Mass Transfer on Competitive Nucleation and Phase Selection in Drop Tube Processing of Multicomponent Alloys; 7.1 Introduction; 7.2 Model

7.2.1 Equations of Time-Dependent Motion, Fluid Flow, and Heat Transfer

Notes:

Description based upon print version of record.

Includes bibliographical references and index.

ISBN:

9786613656186

9783527647927

3527647929

9781280679254

1280679255

9783527647903

3527647902

9783527647934

3527647937

OCLC:

809921055