Effect of Pouring Temperatures on the Microstructures of the Semi-Solid AlSi<sub>7</sub>Mg Alloy

MAO Weimin; YANG Jilian; ZHAO Aimin; CUI Chenglin; ZHONG Xueyou

doi:10.13374/j.issn1001-053x.2001.01.037

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Article Navigation > Chinese Journal of Engineering > 2001 > 23(1): 38-41

MAO Weimin, YANG Jilian, ZHAO Aimin, CUI Chenglin, ZHONG Xueyou. Effect of Pouring Temperatures on the Microstructures of the Semi-Solid AlSi7Mg Alloy[J]. Chinese Journal of Engineering, 2001, 23(1): 38-41. doi: 10.13374/j.issn1001-053x.2001.01.037

Citation:

MAO Weimin, YANG Jilian, ZHAO Aimin, CUI Chenglin, ZHONG Xueyou. Effect of Pouring Temperatures on the Microstructures of the Semi-Solid AlSi₇Mg Alloy[J]. Chinese Journal of Engineering, 2001, 23(1): 38-41. doi: 10.13374/j.issn1001-053x.2001.01.037

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Effect of Pouring Temperatures on the Microstructures of the Semi-Solid AlSi₇Mg Alloy

doi: 10.13374/j.issn1001-053x.2001.01.037

Materials Science and Engineering School, UST Beijing, Beijing 100083, China

Received Date: 2000-06-12

Abstract

Abstract

The effect of different pouring temperatures on the microstructures of AlSi₇Mg alloy has been researched. When the pouring temperature is close to the liquidus temperature of AlSi7Mg alloy, the primary α-Al in the billets of A1Si7Mg alloy solidifies into spherical or nodular grains which are small and distributed homogeneously. In order to obtain non-dendritic semi-solid billets, the appropriate pouring temperature is 615℃. The faster cooling rate,the melt flowing and larger solidification region induced by the near liquidus pouring temperature promotes the formation of spherical or nodular primal α-Al.
- aluminum alloy,
- semi-solid,
- pouring temperature,
- solidification