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Phase Diagrams of Al-Si System

机译:Al-Si系相图

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Thermo-Calc software was used to deduce the phase diagram of the Al-Si binary system, which is a necessary step to understand the more complicated systems containing Si-Al binary. The phase diagram contains two solid solution phases (α-Al) (FCC_Al) and diamond cubic Si (Diamond-A4), a liquid phase, and three mixed phases; FCC_Al + Diamond-A4, liquid + FCC_Al, and liquid + Diamond A4. The melting points of Al and Si are 932.77 and 1687.73 K (659.62 and 1414.58 °C), respectively. From the phase diagram, the eutectic reaction occurs at 12.49 mass percent Si and 850.22 K (577.07 °C). The maximum solubility of Si in Al occurs at the eutectic temperature and 1.547 mass percent Si, and that of Al in Si occurs at 0.1576 Al mass percent at 950.22 K (677.07 °C).
机译:利用Thermo Calc软件推导了Al-Si二元系的相图,这是理解更复杂的含Si-Al二元系的必要步骤。相图包括两个固溶体相(α-Al)(FCC_-Al)和金刚石立方Si(diamond-A4),一个液相和三个混合相;FCC_铝+钻石-A4、液体+FCC_铝和液体+钻石A4。铝和硅的熔点分别为932.77和1687.73 K(659.62和1414.58°C)。从相图来看,共晶反应发生在硅质量分数为12.49%和850.22 K(577.07°C)时。Si在Al中的最大溶解度出现在共晶温度和1.547质量百分比Si下,而Al在Si中的最大溶解度出现在950.22 K(677.07°C)下的0.1576质量百分比下。

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