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INFLUENCE OF SOLUTION HEAT TREATMENT TIME AND TEMPERATURE ON THE EUTECTIC SILICON PARTICLES IN AlSi FOUNDRY ALLOYS

机译:溶液热处理时间和温度对Alsi铸造合金中共晶硅颗粒的影响

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摘要

Al-Si alloys with 7% and 11% Si have been solution heat treated at 540°C and 560°C and the change in area of the eutectic Si crystals has been investigated by means of image analysis. Coarsening of Si crystals in modified alloys is observed after very short heat treatment times, while long heat treatment times are required to obtain changes in unmodified alloys. High temperature treatment is found to enhance the coarsening effect.
机译:具有7%和11%Si的Al-Si合金已经在540℃和560℃下进行溶液热处理,并通过图像分析研究了共晶Si晶体的面积的变化。在非常短的热处理时间后观察到改性合金中的Si晶体中的Si晶体,而在长时间的热处理时间需要获得未改性合金的变化。发现高温处理增强粗化效果。

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