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nucleation modeling

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Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005410
EISBN: 978-1-62708-196-2
.... , Precipitation Kinetics of Al 3 Zr and Al 3 Sc in Aluminum Alloys Modeled with Cluster Dynamics , Acta Mater. , 53 , 2005 , p 2313 26. Wu D.T. , The Time Lag in Nucleation Theory , J. Chem. Phys. , 97 , 1992 , p 2644 27. Shneidman V.A. and Weinberg M.C. , Transient...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005207
EISBN: 978-1-62708-187-0
...) shows the classical spherical cap model for heterogeneous nucleation. Inset (ii) shows a cap of α-aluminum growing on an inoculant particle through the critical hemispherical condition. Fig. 16 (a) Effect of changing the nucleant particle potency on the gradient b with a constant number...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005415
EISBN: 978-1-62708-196-2
... with the Langevin force approach and the explicit nucleation algorithm. Simulated coherent nucleation in a cubic → tetragonal transformation in two dimensions by (a–c) the Langevin force approach and (d–f), explicit nucleation algorithm approach. Reduced time ( t ) is shown. (Model output images are in color...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005421
EISBN: 978-1-62708-196-2
... on the modeling and simulation of cavitation phenomena. It summarizes the experimental observations of cavitation and reviews the modeling of cavity nucleation and growth. The article discusses the modeling of the cavity growth based on mesoscale and microscale under uniaxial versus multiaxial tensile-stress...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006775
EISBN: 978-1-62708-295-2
...Abstract Abstract This article focuses on characterizing the fracture-surface appearance at the microscale and contains some discussion on both crack nucleation and propagation mechanisms that cause the fracture appearance. It begins with a discussion on microscale models and mechanisms...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005403
EISBN: 978-1-62708-196-2
...-Kolmogorov model for static recrystallization. The article reviews the kinetics of DRX with the aid of the Avrami relations. It considers the basic framework of the mesoscale approach for DDRX, including the three basic equations for grain size changes, strain hardening and dynamic recovery, and nucleation...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005405
EISBN: 978-1-62708-196-2
..., with the intent of monitoring via an inspection scheme. This article begins with a discussion on the stages of the fatigue damage process. It describes hierarchical multistage fatigue modeling and several key points regarding the physics of crack nucleation and microstructurally small crack propagation in the HCF...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006300
EISBN: 978-1-62708-179-5
... binary Fe-C phase diagram deformation modeling ferrite transformation lamellar graphite iron nucleation spheroidal graphite iron THE SOLID-STATE TRANSFORMATION products of common cast irons (excluding austenitic cast irons) may be ferrite, pearlite, bainite, and martensite. This article covers...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002367
EISBN: 978-1-62708-193-1
... substantially better than larger and more complex, or lesser quality weldments. Fig. 17 A schematic diagram showing the information required by and the organization of the initiation-propagation model Fig. 18 Comparison of the predictions of the initiation-propagation model with data...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005236
EISBN: 978-1-62708-187-0
... the principles and applications of the phase field method and the cellular automaton method for modeling the direct evolution of structure at the intermediate length scales, where transport phenomena govern the spatial and temporal evolution of the structure that involves nucleation and growth. casting...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005458
EISBN: 978-1-62708-196-2
... on the mechanism and kinetics of early-stage cavity growth, heretofore referred to as nucleation, during hot working and superplastic forming of metals is emerging. The key components of this description are: Any model purporting to describe the early stage of cavitation must therefore address experimental...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005435
EISBN: 978-1-62708-196-2
... plastic are discussed. The article also reviews the overall kinetics of martensitic transformations. martensite modeling ginzburg-landau theory microstructure density functional theory martensitic nucleation theory martensitic growth martensitic transformation MODERN NUMERICAL METHODS...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005432
EISBN: 978-1-62708-196-2
.... , Modeling Dynamic Recrystallization Using Cellular Automata , Scr. Metall. , Vol 38 , 1998 , p 405 – 413 14. Sakai T. , Akben M.G. , and Jonas J.J. , Acta Metall. , Vol 31 , 1983 , p 631 15. Goetz R.L. , Particle Stimulated Nucleation during Dynamic...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005520
EISBN: 978-1-62708-197-9
... 9 , Ref 10 , Ref 11 ), n analytical solutions ( Ref 12 ), flow simulations ( Ref 13 ), and finally to complex direct simulations of the nucleation of multiple solid and gas phases coupled to macroscopic shrinkage models ( Ref 14 ). The first class of models, criteria functions, was initiated...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006304
EISBN: 978-1-62708-179-5
... are discussed: A, on the step of the defect boundary; B, two-dimensional nucleation; and C, screw dislocation. Source: Ref 86 Fig. 22 Growth models of graphite crystals. (a) Growth by helical bending. Conical helices radiating from a common center. Source: Ref 89 . (b) Scanning electron microscopy...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005501
EISBN: 978-1-62708-197-9
...Abstract Abstract This article reviews the topic of computational thermodynamics and introduces the calculation of solidification paths for casting alloys. It discusses the calculation of thermophysical properties and the fundamentals of the modeling of solidification processes. The article...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006314
EISBN: 978-1-62708-179-5
... , 2006 , p 425 – 430 10.4028/www.scientific.net/MSF.508.425 39. Fraś E. , Wiencek K. , Górny M. , and Lopez H. , Theoretical Model for Heterogeneous Nucleation of Grains during Solidification , Mater. Sci. Technol. , Vol 19 , 2003 , p 1653 – 1660 10.1179...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005428
EISBN: 978-1-62708-196-2
... transition probability function, and kT s = 0.5. Fig. 20 Series of snapshots from a Potts model simulation of an extruded aluminum rod recrystallizing with site-saturated surface nucleation. The light gray indicates a recrystallized grain; the dark-gray grains are unrecrystallized. The system...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005459
EISBN: 978-1-62708-196-2
.... , Particle Stimulated Nucleation during Dynamic Recrystallization Using a Cellular-Automata Model , Scr. Mater. , Vol 52 , 2005 , p 851 – 856 30. Goetz R.L. and Seetharaman V. , Static Recrystallization Kinetics with Homogeneous and Heterogeneous Nucleation Using a Cellular-Automata...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005518
EISBN: 978-1-62708-197-9
... Grain Solidification” in this Volume, where they are referred to as direct models of the grain structure. They provide a detailed description of the grain structure and, in particular, textures in cast parts, including statistical aspects due to random nucleation events. Unlike direct models...