Numerical simulation of solidification of molten aluminum alloys in cylindrical molds
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A finite element model for the solidification of molten metals and alloys in cylindrical molds is developed using the energy equation in terms of temperature and enthalpy. The Newton-Raphson technique was used to solve the resulting nonlinear algebraic equations. A computer program is developed to calculate the enthalpy, temperature, and fraction solid per the classical Lever rule, Scheile equation, and Brody-Flemings models. Cooling curves are calculated for pure metal (aluminum), two eutectic alloys (Al-33.2 pct Cu and Al-12.6 pct Si), and three hypoeutectic alloys (Al-2.2 pct Cu, Al-4.5 pct Cu and Al-7 pct Si) and are compared with the experimental curves. © 1993 The Minerals, Metals & Material Society.
author list (cited authors)
Reddy, G. S., Mascarenhas, W. J., & Reddy, J. N.