欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用蛇形通道浇注技术制备半固态A356铝合金浆料，并研究浇注温度和通道直径对半固态A356铝合金浆料的影响。结果表明：当通道直径为20和25mm、浇注温度为640—680℃时，可以制备出初生相α（Al）的半固态浆料，其平均形状因子分别为0．89-0．76和0．86-0．72、平均晶粒直径分别为50—75μm和55—78μm。随着浇注温度的降低，半固态A356铝合金浆料中初生α（Al）晶粒的组织变得细小；较小的通道直径有利于组织的改善。在制备半固态A356铝合金浆料过程中，通道内壁的激冷能够产生大量的晶核。由于晶粒游离和合金熔体自搅拌的共同作用，初生α（Al）晶核能够在熔体内部增殖并且球化。
英文摘要：
Semi-solid A356 aluminum alloy slurry was prepared by using serpentine channel pouring process, and the influences of the channel diameters and pouring temperatures on the semi-solid A356 aluminum alloy slurry were investigated. The experimental results show that when the channel diameter is 20 and 25 mm, respectively, and the pouring temperature is 640-680 ℃, the average diameter of primary α（Al） grains in the prepared A356 aluminum alloy slurry is 50-75 and 55-78 μm, respectively, and the average shape factor of primary α（Al） grains is 0.89-0.76 and 0.86-0.72, respectively. With the decline in the pouring temperature, the microstructure of semi-solid A356 aluminum alloy slurry is more desirable and a serpentine channel with smaller diameter is also advantageous to the microstructure imProvement. During the preparation of semi-solid A356 aluminum alloy slurry, a large number of nuclei can be produced by the chilling effect of the serpentine channel, and owing to the combined effect of the chilled nuclei separation and melt self-stirring, primary α（Al） nuclei can be multiplied and spheroidized finally.
同期刊论文项目
同项目期刊论文
Preparation of semi-solid A356 alloy feedstock cast via a pipe consisting of partial inclined and pa
Influence of the serpentine channel pouring process parameters on semi-solid A356 aluminum alloy slu
期刊信息
位置：