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solidification simulation models

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003176
EISBN: 978-1-62708-199-3
..., and the molding method used. Designers can predict the effect of the design on the structure of the final part using solidification simulation models, namely finite element and finite difference models, and rapid prototyping. The article concludes with a short note on how the quality is assured in the foundry...
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
... of undercooling recorded during solidification of iron castings, the Oldfield polynomial can be used as a good approximation of the log-normal distribution ( Ref 40 , Fig. 5 ). Regardless of which model one may choose in simulations, the number of nuclei increases only with the increase of undercooling...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003729
EISBN: 978-1-62708-177-1
... for dendritic solidification and in Fig. 4 for eutectic solidification ( Ref 9 , 10 ). While phase-field models are fundamental in nature, they are not yet fully quantitative ( Ref 11 ). Fig. 3 Phase-field simulation of dendrite growth. Source: Ref 9 Fig. 4 Phase-field simulation...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002484
EISBN: 978-1-62708-194-8
... today by using solidification simulation models. Most progressive foundries today use simulation models in engineering the casting process. Designers are encouraged to work with foundries and have them run solidification models on their designs in a concurrent design process to engineer castings...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005237
EISBN: 978-1-62708-187-0
... the simulation of macrosegregation and microsegregation. macrosegregation microsegregation continuum model dendritic length scale IN THE PREVIOUS SECTION OF THIS VOLUME, “Principles of Solidification,” an overview of macrosegregation can be found ( Ref 1 ). In order to model macrosegregation, one...
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
... used to predict the equilibrium and phase relationships in multicomponent alloys ( Ref 3 , Ref 4 , Ref 5 ). Currently, several packages are able to simulate solidification using the Scheil model and lever rule, such as Thermo-Calc, Pandat, and JMatPro. It is critical to have an accurate...
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
... developed with the objective of performing a direct simulation of the microstructure. This category of models, which is also presented in the article “Modeling of Dendritic Grain Solidification” as direct models of the dendritic structure, encompasses the phase-field ( Ref 12 , Ref 13 , Ref 14 , Ref 15...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005406
EISBN: 978-1-62708-196-2
... the possibility of simulating directly the development of the solid/liquid interface, including its kinetics, pattern formation, and microsegregation with a limited number of approximations. While this article focuses on a presentation of the CA and PF methods that represent the state of the art for modeling...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005239
EISBN: 978-1-62708-187-0
... phenomena Not able to see the inside phenomena Reaction of melt with the mold Difficult to observe the effect of permeability of mold Not able to observe surface tension-related phenomena (water model) High cost for complicated or large mold For solidification simulation the measured temperature...
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
... ) for modeling interface development, as well as other forms of the front tracking method to simulate the growth of the boundary defined between a mushy zone and the melt ( Ref 18 ). Before examining the technical details, it is worth noting that all models for microstructure formation on different scales...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005425
EISBN: 978-1-62708-196-2
... nucleation, growth, coalescence; failure maps Defect/failure modelssolidification Hot tearing, porosity Constitutive equation models Material behavior, metal flow Future Outlook Modeling and simulation technology will continue to grow because it provides a means to assess “what...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005544
EISBN: 978-1-62708-197-9
... of finite-element-method-based software for solidification modeling, including thermal, solidification, flow, porosity, and stress analysis tools. EKK Inc. http://www.ekkinc.com/tools.html COMSOL COMSOL is a modular suite of software tools for multiphysics modeling and simulation. Available modules...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005538
EISBN: 978-1-62708-197-9
... methods, and computer-enhanced optimization of materials, processes, and designs. Computational modeling and simulation methods for materials and processes have been growing rapidly. As an example, in the 1970s, the development of computer codes to simulate solidification was initiated; commercial...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005521
EISBN: 978-1-62708-197-9
... in the literature, this is not as true for peritectic and eutectic solidification. Several types of models have been developed to simulate the development of a solid-liquid interface ( Ref 1 , Ref 2 , Ref 3 , Ref 4 , Ref 5 ). A typical size of the simulation domain and of the representative elementary...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005513
EISBN: 978-1-62708-197-9
... ). The postsolidification cooling rate controls the character of fine-scale microstructure. A more detailed evolution of microstructure during and after solidification can be modeled using methods such as Monte Carlo simulations, cellular automata, and phase-field simulation. The effect of G and R on the process...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005522
EISBN: 978-1-62708-197-9
... it is expected that materials for tomorrow will be optimized in their design and more efficiently produced. Theoretical modeling and predictive quantitative numerical simulations of grain structure formation in solidification processes using sophisticated integrated software ( Ref 1 , 2 ) have become...
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
... consumption and hence environmental concerns ( Ref 26 ). Extensive experimental studies on pore formation in a range of alloys have led to ever more complex models that simulate both the diffusion of gaseous elements and the feeding of solidification shrinkage in both simplified and commercial alloys ( Ref 14...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006307
EISBN: 978-1-62708-179-5
... ( Stockholm, Sweden ), 1985 , p 273 – 284 14. Lundbäck E. and Svensson I.L. , Prediction of Properties of Nodular Cast Iron Castings, by Means of Computer Simulation , Proc. Modeling of Casting, Welding and Advanced Solidification Processes Conference TMS-V , Sept 1990 ( Davos...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002482
EISBN: 978-1-62708-194-8
... the FEA results give a significant insight into the forming process. Modeling of Casting Operations Of late, considerable developments have taken place in the field of solidification modeling of casting processes. In the current state-of-the-art solidification simulation, several software packages...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005420
EISBN: 978-1-62708-196-2
... Abstract This article focuses on the concepts involved in heat-transfer modeling, thermomechanical modeling, and microsegregation modeling of hot tearing. It discusses the modeling of solidification defects, namely, inclusion entrapment, segregation, shrinkage cavities, gas porosity, mold-wall...