Numerical Simulation and Optimization in Solidification of Zinc Alloy

Abstract

Numerical method was used to simulate the solidification process of zinc-aluminum alloy Zamak 5, shrinkage porosity of the zinc-aluminum alloy ingot with big diameter (114mm) was simulated using the shrinkage criterion, orthogonal test was designed to analysis the influence of different casting parameters as casting temperature, preheating temperature of the mold and the heat transfer coefficient between the mold and the environment. The result shows that the shrinkage value was minimal when the casting temperature was 480, the preheating temperature was 200 and the heat transfer coefficient was 200.

Effect of Segregated Alloying Elements on the High Strength Steel Properties: Application to the Large Size Ingot Casting Simulation

“…Macrosegregation can be controlled by optimization of casting metal composition, dimensions of the ingot and casting/solidification processes. Thus the impact of ingot size [1], mold temperature [2], pouring superheat [3], pouring velocity [4], cooling rate [5], and steel composition [6] on the severity of macrosegregation has been investigated extensively. In order to free from the timely and costly 'trial and error' approach, finite element method (FEM) has been used for the simulation of the casting and solidification process.…”