Microstructure and mechanical properties of AZ31 Mg alloy processed by high ratio extrusion

被引：0

作者：

Chen Yong-jun ^{[1
]}

Wang Qu-dong ^{[1
]}

Lin Jin-bao ^{[1
]}

Zhang Lu-jun ^{[1
]}

Zhai Chun-quan ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Natl Engn Res Ctr Light Alloy Net Forming, Shanghai 200030, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2006年 / 16卷

关键词：

AZ31 Mg alloy; high ratio extrusion; grain refinement; mechanical properties;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The microstructure and mechanical properties of AZ31 Mg alloy processed by high ratio extrusion (HRE) were investigated. General extrusion with extrusion ratio of 7 and high ratio extrusion with extrusion ratio 100 were contrastively conducted at 250, 300 and 350 degrees C. The results show that HRE process may be applied successfully to AZ31 Mg alloy at temperatures of 250, 300 and 350 degrees C and this leads to obvious grain refinement during HRE process. The strength of HRE process is improved obviously compared with that of general extrusion. The grain refining mechanism of HRE process was also discussed. The current results imply that the simple high ratio extrusion method might be a feasible and effective processing means for refining the microstructure and improving the mechanical properties of AZ31 Mg alloy.

引用

页码：S1875 / S1878

页数：4

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