Semisolid structure simulation in controlled nucleation process

Wang, H. and Yao, X. D. (2006) Semisolid structure simulation in controlled nucleation process. Solid State Phenomena, 116-11. pp. 614-617. ISSN 1012-0394


[Abstract]: Computer simulation of semisolid structure formation is of significance in both understanding the mechanisms of the formation of such structure and optimization the solidification conditions for the required structure. A modified cellular automaton (mCA) model has been developed, which is coupled with macroscopic models for heat transfer calculation and microscopic models for nucleation and grain growth. The mCA model is applied to Al-Si alloys, one of the most widely used semisolid alloys. It predicts microstructure morphology and grain size during semi-solid solidification, and determines the effects of poring temperature and mould temperature on the final microstructure. The simulated results are compared with those obtained experimentally. The resulting simulations give some insight into the mechanisms about the semisolid structure formation in Controlled Nucleation process.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Author version not held.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 11 Oct 2007 00:59
Last Modified: 02 Jul 2013 22:42
Uncontrolled Keywords: semisolid metal processing, microstructure modeling, Al-Si alloy
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091207 Metals and Alloy Materials

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