Formation of Compositional Gradient during Fabrication of FGMs by a Centrifugal in-situ Method

机译：通过离心原位方法在FGM的制造过程中形成组成梯度

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The purpose of the present work is to study the formation of the compositional gradient during the fabrication of FGMs by a centrifugal in-situ method. Al-Al2Cu FGMs were fabricated by the centrifugal in-situ method using eutectic Al-33mass%Cu alloy, and the microstructures of fabricated FGMs were studied. It was found that the Al-Al2Cu FGMs could be fabricated by the centrifugal in-situ method from eutectic alloy. Based on the experimental results, the formation mechanism of the compositional gradient during the fabrication of FGM by the centrifugal in-situ method in the A-B alloy could be summarized as follows; 1) Partial separation of A and B elements in the liquid state occurs due to the density difference. 2) A compositional gradient is formed before the crystallization of the primary crystal. 3) The primary crystals in the matrix appear to depend on local chemical composition. 4) The primary crystals migrate according to density difference, and a further compositional gradient is formed.

机译：本作工作的目的是通过离心原位方法在FGM的制造过程中研究组合物梯度的形成。通过使用共晶Al-33mass％Cu合金的离心式原位方法制造Al-Al2Cu FGM，研究了制造的FGM的微观结构。发现Al-Al2Cu FGM可以由来自共晶合金的离心原位方法制造。基于实验结果，通过离心在A-B合金中的离心原位方法在FGM制造过程中组合物梯度的形成机制可以概括如下; 1）由于密度差异，发生液态中A和B元素的部分分离。 2）在初级晶体的结晶之前形成成分梯度。 3）基质中的初级晶体似乎取决于局部化学组成。 4）主要晶体根据密度差迁移，形成进一步的成分梯度。

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《International Symposium on Multifunctional and Functionally Graded Materials(FGM2004)》|2005年||共6页
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中图分类工程材料一般性问题;
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centrifugal in-situ method; eutectic alloy; intermetallics; energy dispersive X-ray (EDX) analysis; centrifugal force; sedimentation;

机译：离心式原位方法;共晶合金;金属间金属;能量分散X射线（EDX）分析;离心力;沉淀;

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Formation of Compositional Gradient during Fabrication of FGMs by a Centrifugal in-situ Method

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