[1]关绍康,沈宁福,石广新..熔体预处理对过共晶Al-Si合金组织及性能的影响[J].郑州大学学报(工学版),1999,20(02):5-7.[doi:10.3969/j.issn.1671-6833.1999.02.002]
　Guan Shaokang,Shen Ningfu,Shi Guangxin.Effect of melt pretreatment on microstructure and properties of supereutectic Al-Si alloy[J].Journal of Zhengzhou University (Engineering Science),1999,20(02):5-7.[doi:10.3969/j.issn.1671-6833.1999.02.002]

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熔体预处理对过共晶Al-Si合金组织及性能的影响()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

20

期数:

1999年02期

页码:

5-7

栏目:

出版日期:

1999-01-01

文章信息/Info

Title:

Effect of melt pretreatment on microstructure and properties of supereutectic Al-Si alloy

作者:

关绍康; 沈宁福; 石广新.

郑州工业大学材料科学与工程系,河南,郑州,450002

Author(s):

Guan Shaokang; Shen Ningfu; Shi Guangxin

关键词:

熔体预处理;  过共晶Al-Si合金;  组织;  性能

Keywords:

melt pretreatment;  pereutectic Al-Si alloy;  organization;  Performance

DOI:

10.3969/j.issn.1671-6833.1999.02.002

文献标志码:

A

摘要:

为提高合金材料的力学性能,研究了熔体预处理对过共晶Al-SI合金的组织及性能的影响.结果表明:一定的熔体预处理工艺条件既能细化过共晶Al-Si合金中的初生硅,又能细化共晶硅,同时也可改善其显微组织的不均匀性,使合金的力学性能得到明显提高,即抗拉强度σb增加43%～60%,延伸率δ增加19.5%～102%,硬度HB增加19%～26.6%.并对熔体预处理的细化机理进行了初步研究

Abstract:

In order to improve the mechanical properties of alloy materials, the effect of melt pretreatment on the microstructure and properties of supereutectic Al-SI alloy was studied. The results show that certain melt pretreatment process conditions can not only refine the primary silicon in the eutectic Al-Si alloy, but also refine the eutectic silicon, and also improve the inhomogeneity of its microstructure, so that the mechanical properties of the alloy can be significantly improved, that is, the tensile strength σb increases by 43%~60%, the elongation δ increases by 19.5%~102%, and the hardness HB increases by 19%~26.6%.

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