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Preparation of metal alloy powder by semi-solid processing

机译:半固态加工制备金属合金粉末

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摘要

A laboratory study was carried out, using Pb-15 wt.% Sn alloy on self-made apparatus, to determine the solidification behavior of the semi-solid slurry with the solid fraction beyond 0.6. It is found that the solid-liquid separation is obvious in the samples with the solid fraction beyond 0.6. According to this character of semi-solid processing, a kind of single-crystal powder coated with Pb-Sn eutectic was made during continuous stirring and cooling processes. The analysis and discussion indicated that this approach can reduce the content of oxide and impurity in the powder.
机译:使用Pb-15 wt。%Sn合金在自制设备上进行了实验室研究,以确定固体分率超过0.6的半固态浆料的凝固行为。发现固含量超过0.6的样品中固液分离明显。根据半固态加工的这一特点,在连续搅拌和冷却过程中制得了一种涂有Pb-Sn共晶的单晶粉末。分析和讨论表明,该方法可以减少粉末中的氧化物和杂质含量。

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