Microstructure and Properties of Semi-Solid Extrusion of AlSi7Mg Alloy

被引：0

作者：

Zhao Da-zhi ^{[1
]}

Liang Hai-cheng ^{[2
]}

Liu Fang ^{[1
]}

Yu Fu-xiao ^{[1
]}

机构：

[1] Northeastern Univ, Key Lab Electromagnet Proc Mat, Shenyang 110004, Peoples R China

[2] E China Univ Sci & Technol, Sch Resources & Environm Engn, Shanghai 200237, Peoples R China

来源：

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2010年 / 17卷

关键词：

semi-continuous casting; AlSi7Mg alloy; forward-extrusion; microstructure and properties; BEHAVIOR;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The semi-solid forward-extruding feasibility of AlSi7Mg alloy cast by low-superheat semi-continuous casting process was studied through analyzing the microstructures and properties of the forward-extruded bars. The results show that the semi-solid forward-extruded bars of the AlSi7Mg alloy billet, cast by low-superheat semi-continuous casting process, are facial-smoothed, microstructure-fined and homogeneous. The feasibility of semi-solid forward-extrusion of AlSi7Mg alloy is perfect. Treated by the solution at 540 degrees C for 5 hours and aging at 175 degrees C for 10 hours, the tensile strength of the extruded bars is above 320 MPa and the elongation rate is above 11.43%.

引用

页码：56 / 61

页数：6