Abstract

The semi-solid A380 aluminum alloy slurry prepared by water-cooling serpentine channel and its rheo-diecasting were studied in this paper. The result showed that the pouring temperature and cooling water flow rate had a significant effect on the semi-solid slurry. When the pouring temperature decreased from 670 to 610 °C, the average grain diameter and shape factor of the primary α-Al grains decreased from 64 to 47 µm and increased from 0.74 to 0.82, respectively, but the mass of semi-solid slurry blocked in channel increased. With the cooling water flow rate increasing from 0 to 1000 L/h, the semi-solid slurry firstly got optimized and then deteriorated. Under the condition of the same die casting process parameters, the rheo-diecastings produced by the semi-solid slurry prepared through water-cooled serpentine channel had higher mechanical properties than those of the traditional die castings.

Graphic Abstract

In this work, a new simple and low cost preparation of semi-solid slurry was invited, which was suitable for rheological forming of the short process. What's more, the rheo-diecasting was studied through comparing the traditional die casting. The result showed that the pouring temperature and cooling water flow rate had a significant effect on the semi-solid slurry. When the pouring temperature decreased, the average grain diameter and shape factor of the primary α-Al grains increased and decreased respectively. With the cooling water flow rate increasing, the semi-solid slurry firstly got optimized and then deteriorated. Under the condition of the same die casting process parameters, the rheo-diecastings produced by the semi-solid slurry prepared through water-cooled serpentine channel had higher mechanical properties than those of the traditional die castings.

中文翻译：

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水冷却蛇形通道制备半固态A380铝合金浆料及其流变压铸研究

摘要

研究了水冷蛇形通道制备的半固态A380铝合金浆料及其流变压铸。结果表明，浇注温度和冷却水流量对半固态浆液有显着影响。当浇铸温度从670降低到610°C时，初生α-Al晶粒的平均粒径和形状因子分别从64降低到47 µm，从0.74升高到0.82，但是半固态浆料的质量被阻止在频道中增加。随着冷却水流量从0升至1000 L / h，半固态浆料首先得到优化，然后劣化。在压铸工艺参数相同的条件下，

图形摘要

在这项工作中，邀请了一种新的简单且低成本的半固体浆料制备方法，该方法适合于短流程的流变成型。此外，通过比较传统压铸件，对流变压铸进行了研究。结果表明，浇注温度和冷却水流量对半固态浆液有显着影响。当浇注温度降低时，初生α-Al晶粒的平均粒径和形状因子分别增大和减小。随着冷却水流量的增加，半固态浆料首先得到优化，然后劣化。在压铸工艺参数相同的条件下，