Microstructural evolution and mechanical properties of hypereutectic Al-Si alloy processed by liquid die forging

被引：18

作者：

Wu, F. F. ^{[1
]}

Li, S. T. ^{[1
]}

Zhang, G. A. ^{[1
]}

Jiang, F. ^{[1
]}

机构：

[1] Liaoning Univ Technol, Sch Mat Sci & Engn, Jinzhou 121001, Peoples R China

来源：

BULLETIN OF MATERIALS SCIENCE | 2014年 / 37卷 / 05期

关键词：

Mechanical properties; hypereutectic Al-Si alloy; liquid die forging; TENSILE PROPERTIES; REFINEMENT; CE; SOLIDIFICATION; STRONTIUM; ADDITIONS;

D O I：

10.1007/s12034-014-0056-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructural evolution and mechanical properties of a hypereutectic Al-Si alloy processed by liquid die forging were investigated. It is found that the grain size of the primary Si was significantly reduced by liquid die forging with increased pressure. The volume fraction of eutectic silicon was decreased with increased pressure. By liquid die forging with pressure up to 180 MPa, the average size of the primary Si was reduced to about 18 mu m, which results in the remarkable increase in the fracture strength and hardness of the hypereutectic Al-Si alloy.

引用

页码：1153 / 1157

页数：5

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