Preparation of Semi-solid A380 Alloy slurry by the Serpentine Channel Pouring

Liu Zhiyong; Mao Weimin; Wang Weipan; Zheng Zhikai

doi:10.15980/j.tzzz.2015.01.014

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Preparation of Semi-solid A380 Alloy slurry by the Serpentine Channel Pouring
Vol. 35, Issue 1, Pages: 48-51(2015)
Published： 2015 ，
DOI： 10.15980/j.tzzz.2015.01.014

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[1]刘志勇,毛卫民,王伟番,郑志凯.蛇形通道浇注法制备半固态A380铝合金浆料[J].特种铸造及有色合金,2015,35(01):48-51.

Liu Zhiyong, Mao Weimin, Wang Weipan, et al. Preparation of Semi-solid A380 Alloy slurry by the Serpentine Channel Pouring. [J]. Special Casting & Nonferrous Alloys 35(1):48-51(2015)
[1]刘志勇,毛卫民,王伟番,郑志凯.蛇形通道浇注法制备半固态A380铝合金浆料[J].特种铸造及有色合金,2015,35(01):48-51. DOI： 10.15980/j.tzzz.2015.01.014.

Liu Zhiyong, Mao Weimin, Wang Weipan, et al. Preparation of Semi-solid A380 Alloy slurry by the Serpentine Channel Pouring. [J]. Special Casting & Nonferrous Alloys 35(1):48-51(2015) DOI： 10.15980/j.tzzz.2015.01.014.

摘要

采用石墨质蛇形通道浇注法制备半固态A380铝合金浆料

研究了浇注温度、弯道数量和弯道内径对半固态A380铝合金浆料组织的影响。结果表明

浇注温度在610

50℃范围时可获得理想的半固态A380铝合金浆料

半固态A380铝合金浆料组织随浇注温度的降低

由蔷薇晶组织向近球晶或球晶组织演变。在相同浇注温度条件下

弯道数量的增加或通道内径尺寸的减小都可细化半固态A380铝合金浆料组织中的初生α-Al晶粒

提高形状因子

进而优化其浆料组织。

Abstract

The semi-solid slurry of A380 aluminum alloy was prepared through a serpentine pouring channel

and influences of pouring temperature

the curve numbers and the curve diameters in a serpentine channel on microstructure of the alloy slurry were investigated.The experimental results show that the satisfactory semi-solid A380 aluminum alloy slurry can be obtained with the pouring temperature at 610℃

650 ℃.The microstructure of the semi-solid A380 alloy slurry can be evolved from rossette to spherical particle.At a given pouring temperature

the particle size of primaryα-Al can be decreased and the shape factor of primaryα-Al is increased with the increases of the curve number or decrease of the diameter of the curve

at the same time

the microstructure of semi-solid A380 alloy slurry can be optimized.