电磁搅拌频率对半固态A356铝合金初生α相和铈分布的影响

发布时间：2018-03-12 11:54

  本文选题：半固态　切入点：电磁搅拌　出处：《中国稀土学报》2015年03期 　论文类型：期刊论文

【摘要】：利用低过热度浇注和电磁搅拌技术制备半固态A356-Ce铝合金浆料。探讨了电磁搅拌频率对半固态初生α相形貌和Ce在凝固组织中的分布的影响。研究结果表明:在半固态A356-Ce合金浆料的制备过程中,电磁搅拌频率对半固态初生相的形貌以及Ce的分布影响很大,通过实验研究获得了制备半固态A356-Ce铝合金浆料的合适工艺参数,即在浇注温度为620℃,保温温度590℃,保温时间为10 min,稀土添加量为0.4%,搅拌时间为15s的条件下,搅拌频率为30 Hz的晶粒细化效果最佳,其平均形状因子为0.80,平均等级圆直径为76.1μm,稀土分布也更均匀。
[Abstract]:The semi-solid A356-Ce aluminum alloy slurry was prepared by low superheat pouring and electromagnetic stirring. The effect of electromagnetic stirring frequency on the morphology of primary 伪 phase and the distribution of ce in solidified microstructure was investigated. In the preparation of solid A356-Ce alloy slurry, The frequency of electromagnetic stirring has a great influence on the morphology of primary phase and the distribution of ce in semisolid phase. The suitable technological parameters for the preparation of semi-solid A356-Ce aluminum alloy slurry have been obtained through experimental study, that is, the pouring temperature is 620 鈩，

本文编号：1601442