离心铸造Al-Fe-Si合金自生FGM的研究

In-situ Functionally Gradient Materials(FGM) of Al-Fe-Si Alloy by Centrifugal Casting

对几种不同的Al Fe Si合金进行了离心铸造。试验表明 ,在离心力场下合金中的初生相发生径向移动 ,但不同尺寸形态的初生相移动的效果不同 ,同时引起元素浓度的不同变化。初生相分布及元素浓度的倾斜变化 ,将带来相关性能的梯度变化 。

Some various Al Fe Si alloys by centrifugal casting was conducted. The results showed that under the centrifugal field, primary phase in alloy migrated along the radical direction but the migration effects of the primary phase with various sizes were different. Meanwhile, the element concentration has different variation under the centrifugal field. The sloping changes of the primary phase distribution and the element concentration would results in the gradient variation of relevant properties and form functionally gradient materials to certain extent.