Microstructural analysis and tensile properties of squeeze cast Al-7%Mg Alloy

被引：6

作者：

De Brito, Crystopher Cardoso ^{[1
]}

Magalhaes, Fabricio Dias ^{[1
]}

Costa, Andre Luiz de Morals ^{[1
]}

Siqueira, Claudio Alves ^{[1
]}

机构：

[1] Fed Univ Para, Fac Engn Mat, BR-68505970 Maraba, PA, Brazil

来源：

FUNCTIONAL AND STRUCTURAL MATERIALS | 2010年 / 643卷

关键词：

Squeeze casting; Al-Mg; microstructure; mechanical properties;

D O I：

10.4028/www.scientific.net/MSF.643.119

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Squeeze casting is one of the modern casting processes, which was invented to address these shortcomings and has a high potential to produce sound casting alloys. Magnesium Alloys are the lightest structural alloys commercially available and have great potential for applications in aerospace and automobile industries. In this article, the influence of pressure variation on the microstructure and defects formation in the A1-7%Mg alloy during squeeze casting process was studied. It was observed that a small external pressure of 20 MPa promoted structural refinement and a significant increasing in the ultimate tensile strength. This improvement in structure and properties is attributed to increasing in the cooling rate during squeezing.

引用

页码：119 / 123

页数：5

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