A multiphase solute diffusion model for dendritic alloy solidification
Abstract A solute diffusion model, aimed at predicting microstructure formation in metal castings, is proposed for dendritic solidification of alloys. The model accounts for the different length scales existing in a dendritic structure. This is accomplished by utilizing a multiphase approach, in whi...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Wang, C. Y. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1993 |
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| Schlagwörter: |
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| Anmerkung: |
© The Minerals, Metals and Materials Society, and ASM International 1993 |
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| Übergeordnetes Werk: |
Enthalten in: Metallurgical and materials transactions / A - Springer New York, 1994, 24(1993), 12 vom: 01. Dez., Seite 2787-2802 |
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| Übergeordnetes Werk: |
volume:24 ; year:1993 ; number:12 ; day:01 ; month:12 ; pages:2787-2802 |
| Links: |
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| DOI / URN: |
10.1007/BF02659502 |
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OLC2053980249 |
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| 520 | |a Abstract A solute diffusion model, aimed at predicting microstructure formation in metal castings, is proposed for dendritic solidification of alloys. The model accounts for the different length scales existing in a dendritic structure. This is accomplished by utilizing a multiphase approach, in which not only the various physical phases but also phases associated with different length scales are considered separately. The macroscopic conservation equations are derived for each phase using the volume averaging technique, with constitutive relations developed for the interfacial transfer terms. It is shown that the multiphase model can rigorously incorporate the growth of dendrite tips and coarsening of dendrite arms. In addition, the distinction of different length scales enables the inclusion of realistic descriptions of the dendrite topology and relations to key metallurgical parameters. Another novel aspect of the model is that a single set of conservation equations for solute diffusion is developed for both equiaxed and columnar dendritic solidification. Finally, illustrative calculations for equiaxed, columnar, and mixed columnar-equiaxed solidification are carried out to provide quantitative comparisons with previous studies, and a variety of fundamental phenomena such as recalescence, dendrite tip undercooling, and columnar-to-equiaxed transition (CET) are predicted. | ||
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10.1007/BF02659502 doi (DE-627)OLC2053980249 (DE-He213)BF02659502-p DE-627 ger DE-627 rakwb eng 670 530 VZ 19,1 ssgn Wang, C. Y. verfasserin aut A multiphase solute diffusion model for dendritic alloy solidification 1993 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Minerals, Metals and Materials Society, and ASM International 1993 Abstract A solute diffusion model, aimed at predicting microstructure formation in metal castings, is proposed for dendritic solidification of alloys. The model accounts for the different length scales existing in a dendritic structure. This is accomplished by utilizing a multiphase approach, in which not only the various physical phases but also phases associated with different length scales are considered separately. The macroscopic conservation equations are derived for each phase using the volume averaging technique, with constitutive relations developed for the interfacial transfer terms. It is shown that the multiphase model can rigorously incorporate the growth of dendrite tips and coarsening of dendrite arms. In addition, the distinction of different length scales enables the inclusion of realistic descriptions of the dendrite topology and relations to key metallurgical parameters. Another novel aspect of the model is that a single set of conservation equations for solute diffusion is developed for both equiaxed and columnar dendritic solidification. Finally, illustrative calculations for equiaxed, columnar, and mixed columnar-equiaxed solidification are carried out to provide quantitative comparisons with previous studies, and a variety of fundamental phenomena such as recalescence, dendrite tip undercooling, and columnar-to-equiaxed transition (CET) are predicted. Metallurgical Transaction Solute Diffusion Interdendritic Liquid Dendritic Solidification Columnar Front Beckermann, C. aut Enthalten in Metallurgical and materials transactions / A Springer New York, 1994 24(1993), 12 vom: 01. Dez., Seite 2787-2802 (DE-627)171342011 (DE-600)1179415-X (DE-576)038876930 1073-5623 nnns volume:24 year:1993 number:12 day:01 month:12 pages:2787-2802 https://doi.org/10.1007/BF02659502 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY AR 24 1993 12 01 12 2787-2802 |
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10.1007/BF02659502 doi (DE-627)OLC2053980249 (DE-He213)BF02659502-p DE-627 ger DE-627 rakwb eng 670 530 VZ 19,1 ssgn Wang, C. Y. verfasserin aut A multiphase solute diffusion model for dendritic alloy solidification 1993 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Minerals, Metals and Materials Society, and ASM International 1993 Abstract A solute diffusion model, aimed at predicting microstructure formation in metal castings, is proposed for dendritic solidification of alloys. The model accounts for the different length scales existing in a dendritic structure. This is accomplished by utilizing a multiphase approach, in which not only the various physical phases but also phases associated with different length scales are considered separately. The macroscopic conservation equations are derived for each phase using the volume averaging technique, with constitutive relations developed for the interfacial transfer terms. It is shown that the multiphase model can rigorously incorporate the growth of dendrite tips and coarsening of dendrite arms. In addition, the distinction of different length scales enables the inclusion of realistic descriptions of the dendrite topology and relations to key metallurgical parameters. Another novel aspect of the model is that a single set of conservation equations for solute diffusion is developed for both equiaxed and columnar dendritic solidification. Finally, illustrative calculations for equiaxed, columnar, and mixed columnar-equiaxed solidification are carried out to provide quantitative comparisons with previous studies, and a variety of fundamental phenomena such as recalescence, dendrite tip undercooling, and columnar-to-equiaxed transition (CET) are predicted. Metallurgical Transaction Solute Diffusion Interdendritic Liquid Dendritic Solidification Columnar Front Beckermann, C. aut Enthalten in Metallurgical and materials transactions / A Springer New York, 1994 24(1993), 12 vom: 01. Dez., Seite 2787-2802 (DE-627)171342011 (DE-600)1179415-X (DE-576)038876930 1073-5623 nnns volume:24 year:1993 number:12 day:01 month:12 pages:2787-2802 https://doi.org/10.1007/BF02659502 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY AR 24 1993 12 01 12 2787-2802 |
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10.1007/BF02659502 doi (DE-627)OLC2053980249 (DE-He213)BF02659502-p DE-627 ger DE-627 rakwb eng 670 530 VZ 19,1 ssgn Wang, C. Y. verfasserin aut A multiphase solute diffusion model for dendritic alloy solidification 1993 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Minerals, Metals and Materials Society, and ASM International 1993 Abstract A solute diffusion model, aimed at predicting microstructure formation in metal castings, is proposed for dendritic solidification of alloys. The model accounts for the different length scales existing in a dendritic structure. This is accomplished by utilizing a multiphase approach, in which not only the various physical phases but also phases associated with different length scales are considered separately. The macroscopic conservation equations are derived for each phase using the volume averaging technique, with constitutive relations developed for the interfacial transfer terms. It is shown that the multiphase model can rigorously incorporate the growth of dendrite tips and coarsening of dendrite arms. In addition, the distinction of different length scales enables the inclusion of realistic descriptions of the dendrite topology and relations to key metallurgical parameters. Another novel aspect of the model is that a single set of conservation equations for solute diffusion is developed for both equiaxed and columnar dendritic solidification. Finally, illustrative calculations for equiaxed, columnar, and mixed columnar-equiaxed solidification are carried out to provide quantitative comparisons with previous studies, and a variety of fundamental phenomena such as recalescence, dendrite tip undercooling, and columnar-to-equiaxed transition (CET) are predicted. Metallurgical Transaction Solute Diffusion Interdendritic Liquid Dendritic Solidification Columnar Front Beckermann, C. aut Enthalten in Metallurgical and materials transactions / A Springer New York, 1994 24(1993), 12 vom: 01. Dez., Seite 2787-2802 (DE-627)171342011 (DE-600)1179415-X (DE-576)038876930 1073-5623 nnns volume:24 year:1993 number:12 day:01 month:12 pages:2787-2802 https://doi.org/10.1007/BF02659502 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY AR 24 1993 12 01 12 2787-2802 |
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10.1007/BF02659502 doi (DE-627)OLC2053980249 (DE-He213)BF02659502-p DE-627 ger DE-627 rakwb eng 670 530 VZ 19,1 ssgn Wang, C. Y. verfasserin aut A multiphase solute diffusion model for dendritic alloy solidification 1993 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Minerals, Metals and Materials Society, and ASM International 1993 Abstract A solute diffusion model, aimed at predicting microstructure formation in metal castings, is proposed for dendritic solidification of alloys. The model accounts for the different length scales existing in a dendritic structure. This is accomplished by utilizing a multiphase approach, in which not only the various physical phases but also phases associated with different length scales are considered separately. The macroscopic conservation equations are derived for each phase using the volume averaging technique, with constitutive relations developed for the interfacial transfer terms. It is shown that the multiphase model can rigorously incorporate the growth of dendrite tips and coarsening of dendrite arms. In addition, the distinction of different length scales enables the inclusion of realistic descriptions of the dendrite topology and relations to key metallurgical parameters. Another novel aspect of the model is that a single set of conservation equations for solute diffusion is developed for both equiaxed and columnar dendritic solidification. Finally, illustrative calculations for equiaxed, columnar, and mixed columnar-equiaxed solidification are carried out to provide quantitative comparisons with previous studies, and a variety of fundamental phenomena such as recalescence, dendrite tip undercooling, and columnar-to-equiaxed transition (CET) are predicted. Metallurgical Transaction Solute Diffusion Interdendritic Liquid Dendritic Solidification Columnar Front Beckermann, C. aut Enthalten in Metallurgical and materials transactions / A Springer New York, 1994 24(1993), 12 vom: 01. Dez., Seite 2787-2802 (DE-627)171342011 (DE-600)1179415-X (DE-576)038876930 1073-5623 nnns volume:24 year:1993 number:12 day:01 month:12 pages:2787-2802 https://doi.org/10.1007/BF02659502 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY AR 24 1993 12 01 12 2787-2802 |
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10.1007/BF02659502 doi (DE-627)OLC2053980249 (DE-He213)BF02659502-p DE-627 ger DE-627 rakwb eng 670 530 VZ 19,1 ssgn Wang, C. Y. verfasserin aut A multiphase solute diffusion model for dendritic alloy solidification 1993 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Minerals, Metals and Materials Society, and ASM International 1993 Abstract A solute diffusion model, aimed at predicting microstructure formation in metal castings, is proposed for dendritic solidification of alloys. The model accounts for the different length scales existing in a dendritic structure. This is accomplished by utilizing a multiphase approach, in which not only the various physical phases but also phases associated with different length scales are considered separately. The macroscopic conservation equations are derived for each phase using the volume averaging technique, with constitutive relations developed for the interfacial transfer terms. It is shown that the multiphase model can rigorously incorporate the growth of dendrite tips and coarsening of dendrite arms. In addition, the distinction of different length scales enables the inclusion of realistic descriptions of the dendrite topology and relations to key metallurgical parameters. Another novel aspect of the model is that a single set of conservation equations for solute diffusion is developed for both equiaxed and columnar dendritic solidification. Finally, illustrative calculations for equiaxed, columnar, and mixed columnar-equiaxed solidification are carried out to provide quantitative comparisons with previous studies, and a variety of fundamental phenomena such as recalescence, dendrite tip undercooling, and columnar-to-equiaxed transition (CET) are predicted. Metallurgical Transaction Solute Diffusion Interdendritic Liquid Dendritic Solidification Columnar Front Beckermann, C. aut Enthalten in Metallurgical and materials transactions / A Springer New York, 1994 24(1993), 12 vom: 01. Dez., Seite 2787-2802 (DE-627)171342011 (DE-600)1179415-X (DE-576)038876930 1073-5623 nnns volume:24 year:1993 number:12 day:01 month:12 pages:2787-2802 https://doi.org/10.1007/BF02659502 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY AR 24 1993 12 01 12 2787-2802 |
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A multiphase solute diffusion model for dendritic alloy solidification |
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Abstract A solute diffusion model, aimed at predicting microstructure formation in metal castings, is proposed for dendritic solidification of alloys. The model accounts for the different length scales existing in a dendritic structure. This is accomplished by utilizing a multiphase approach, in which not only the various physical phases but also phases associated with different length scales are considered separately. The macroscopic conservation equations are derived for each phase using the volume averaging technique, with constitutive relations developed for the interfacial transfer terms. It is shown that the multiphase model can rigorously incorporate the growth of dendrite tips and coarsening of dendrite arms. In addition, the distinction of different length scales enables the inclusion of realistic descriptions of the dendrite topology and relations to key metallurgical parameters. Another novel aspect of the model is that a single set of conservation equations for solute diffusion is developed for both equiaxed and columnar dendritic solidification. Finally, illustrative calculations for equiaxed, columnar, and mixed columnar-equiaxed solidification are carried out to provide quantitative comparisons with previous studies, and a variety of fundamental phenomena such as recalescence, dendrite tip undercooling, and columnar-to-equiaxed transition (CET) are predicted. © The Minerals, Metals and Materials Society, and ASM International 1993 |
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Abstract A solute diffusion model, aimed at predicting microstructure formation in metal castings, is proposed for dendritic solidification of alloys. The model accounts for the different length scales existing in a dendritic structure. This is accomplished by utilizing a multiphase approach, in which not only the various physical phases but also phases associated with different length scales are considered separately. The macroscopic conservation equations are derived for each phase using the volume averaging technique, with constitutive relations developed for the interfacial transfer terms. It is shown that the multiphase model can rigorously incorporate the growth of dendrite tips and coarsening of dendrite arms. In addition, the distinction of different length scales enables the inclusion of realistic descriptions of the dendrite topology and relations to key metallurgical parameters. Another novel aspect of the model is that a single set of conservation equations for solute diffusion is developed for both equiaxed and columnar dendritic solidification. Finally, illustrative calculations for equiaxed, columnar, and mixed columnar-equiaxed solidification are carried out to provide quantitative comparisons with previous studies, and a variety of fundamental phenomena such as recalescence, dendrite tip undercooling, and columnar-to-equiaxed transition (CET) are predicted. © The Minerals, Metals and Materials Society, and ASM International 1993 |
| abstract_unstemmed |
Abstract A solute diffusion model, aimed at predicting microstructure formation in metal castings, is proposed for dendritic solidification of alloys. The model accounts for the different length scales existing in a dendritic structure. This is accomplished by utilizing a multiphase approach, in which not only the various physical phases but also phases associated with different length scales are considered separately. The macroscopic conservation equations are derived for each phase using the volume averaging technique, with constitutive relations developed for the interfacial transfer terms. It is shown that the multiphase model can rigorously incorporate the growth of dendrite tips and coarsening of dendrite arms. In addition, the distinction of different length scales enables the inclusion of realistic descriptions of the dendrite topology and relations to key metallurgical parameters. Another novel aspect of the model is that a single set of conservation equations for solute diffusion is developed for both equiaxed and columnar dendritic solidification. Finally, illustrative calculations for equiaxed, columnar, and mixed columnar-equiaxed solidification are carried out to provide quantitative comparisons with previous studies, and a variety of fundamental phenomena such as recalescence, dendrite tip undercooling, and columnar-to-equiaxed transition (CET) are predicted. © The Minerals, Metals and Materials Society, and ASM International 1993 |
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A multiphase solute diffusion model for dendritic alloy solidification |
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Beckermann, C. |
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2024-07-03T21:27:13.035Z |
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