In this study, vertical centrifugal casting process is used for the fabrication of functionally graded A390 alloy hollow cylinder and Mg & Sr-included A390 alloy hollow cylinder. The commercial CFD software FLOW3D™ is used to obtain the optimum rotational speed for making an optimized hollow cylinder in a vertical centrifugal casting machine. The optimum rotational speed obtained is 1300 rpm. This rotational speed is used in the experiments to obtain hollow cylinders of optimized thickness for (a) A390 alloy (b) by adding various weight percentages of Mg and Sr in A390 alloy. The optical microstructures obtained at various radial locations are presented for centrifugally cast A390 alloy. The effect of individual addition of Mg & Sr into A390 alloy on the microstructures at various locations along the radial direction of centrifugally cast cylinder is discussed in detail.

在这项研究中，垂直离心铸造工艺用于制造功能梯度的A390合金空心圆柱体和含Mg和Sr的A390合金空心圆柱体。商业CFD软件FLOW3D™用于获得最佳旋转速度，以在立式离心铸造机中制造优化的空心圆柱体。获得的最佳转速为1300 rpm。该转速用于实验中，通过添加A390合金中各种重量百分比的Mg和Sr，获得（a）A390合金（b）厚度最优化的空心圆柱体。介绍了在离心铸造的A390合金的不同径向位置获得的光学显微组织。镁和镁单独添加的影响