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Tytuł artykułu

Modeling of two-stage solidification: Part II computational verification of the model

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In Part I of this article, two-stage solidification model was presented. In this part we use our model to simulate solidification of the Al 7% Si alloy for two cooling rates - 2 deg/s and - 20 deg/s. Simulations have been performed for two eutectic transformation modes, typical for modified and unmodified alloys. Obtained cooling curves are qualitatively consistent with the typical cooling curves for modified and unmodified alloys. Moreover, evolution of cooling-curve characteristics is compared with the analytical model and found to be in close agreement.
Rocznik
Strony
125--130
Opis fizyczny
Bibliogr. 19 poz., rys., tab., wykr.
Twórcy
autor
  • Mechanical Engineering Department, Iowa State University, Ames, Iowa, USA
  • Faculty of Mechanical Engineering and Computer Science, Czestochowa University of Technology, Poland
Bibliografia
  • [1] S. McDonald, K. Nogita, A. Dahle, J. Taylor, D. StJohn. (2000). Eutectic solidification and porosity formation in Al–Si alloys role of strontium. AFS Transactions. 115, 463-470.
  • [2] A. Dahle, K. Nogita, J. Zindel, S. McDonald, L. Hogan. (2001). Eutectic nucleation and growth in hypoeutectic Al–Si alloys at different strontium levels. Metallurgical Materials Transactions. 32A, 949–960.
  • [3] C. Dinnis, A. Dahle, J. Taylor, (2005). Three-dimensional analysis of eutectic grains in hypoeutectic Al–Si alloys. Materials Science and Engineering A. 392A, 440–448.
  • [4] S. McDonald, K. Nogita, Dahle, J. Taylor, D. StJohn. (2000). Eutectic solidification and porosity formation in Al–Si alloys: role of strontium. AFS Transactions. 108, 463-470.
  • [5] C. Dinnis, A. Dahle, J. Taylor. (2005). Three-dimensional analysis of eutectic grains in hypoeutectic Al–Si alloys. Mater. Science and Engng A. 392 A, 440–448.
  • [6] S. McDonald, K. Nogita, A. Dahle. (2004). Eutectic nucleation in Al-Si alloys. Acta Mater. 52, 4273–4280.
  • [7] K. Nogita, S. McDonald, A. Dahle. (2004). Eutectic solidification and its role in casting porosity formation. JOM. 56, 52–58.
  • [8] S. McDonald, A. Dahle, J. Taylor, D. StJohn. (2004). Eutectic grains in unmodified and strontium-modified hypoeutectic aluminium-silicin alloys. Metall. Mater. Trans. A. 35A, 1829–1837.
  • [9] C.-A. Gandin, M. Rappaz. (1994). A coupled finite element cellular automaton model for the prediction of dendritic grain structures in solidification processes. Acta Metallurgica et Materialia. 42, 2233–2246.
  • [10] J. Gawad, P. Maciol, M. Pietrzyk. (2005). Multiscale modeling of microstructure and macroscopic properties in thixoforming process using cellular automation technique. Archives of Metallurgy and Materials. 50, 549-562.
  • [11] L. Madej, J. Talamantes-Silva, I.C. Howard, M. Pietrzyk. (2005). Modeling of the initiation of the shear band using the coupled CAFE model. Archives of Metallurgy and Materials. 50, 563-573.
  • [12] C. Gonzalez-Rivera, B. Campillo, M. Castro, M. Herrera, J. Juarez-Islas. (2000). On the local microstructural characteristics observed in sand cast Al–Si alloys. Materials Science and Engineering A. 279, 149–159.
  • [13] M. Rappaz, P. Thevoz. (1987). Solute diffusion model for equiaxed dendritic growth. Acta Metallurgica. 34, 1487–1497.
  • [14] Q. Du, D. Eskin, A. Jacot, L. Katgerman. (2007). Two-dimensional modelling and experimental study on microsegregation during solidification of an Al–Cu binary alloy. Acta Mater. 55, 1523–1532.
  • [15] D. D. Goettsch, J. Dantzig. (1994). Modeling microstructure development in gray cast irons. Metall. Mater. Trans. A. 25A, 1063–1079.
  • [16] D. Celentano, M. Cruchaga. (1999). A thermally coupled flow formation with microstructural evolution for hypoeutectic cast-iron solidification. Metall. Mater. Trans. B. 30B, 731–744.
  • [17] D. Maijer, S. Cockcroft, W. Patt. (1999). Mathematical modeling of microstructural development in hypoeutectic cast iron. Metall. and Mater. Trans. A. 30, 2147–2158.
  • [18] S. Chang, D. Shangguan, D. Stefanescu. (1992). Modeling of the solid/liquid and eutectoid phase transitions in the spheroidal graphite cast iron, Metall. Mater. Trans. A. 23A, 1333-1346.
  • [19] C. Charbon, A. Jacot, M. Rappaz. (1994). 3D stochastic modelling of equiaxed solidification in the presence of grain movement, Acta Metall. Mater. 42, 3953–3966.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-6467872f-9795-4db8-a9f3-f7e108bb9c1a
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