Effect of extrusion temperature on the microstructure and plastic deformation of PM-AZ92

详细信息    查看全文

• 作者：G. Garcé ; s ; F. Domí ; nguez ; P. Pé ; rez ; G. Caruana and P. Adeva
• 关键词：Magnesium alloys ; Powder metallurgy ; Microstructure ; Mechanical properties
• 刊名：Journal of Alloys and Compounds
• 出版年：2006
• 出版时间：28 September 2006
• 年：2006
• 卷：422
• 期：1-2
• 页码：293-298
• 全文大小：612 K

文摘

The effect of extrusion temperature on the microstructure and mechanical behaviour of powder metallurgy AZ92 alloy has been investigated. After extrusion the microstructure consists of magnesium grains and γ(Mg₁₇Al₁₂) particles located at grain boundaries. The appearance of Al₈Mn₅ particles in the original powders is also observed. As the extrusion temperature decreases, the yield stress increases due to grain size refinement and a higher volume fraction of γ(Mg₁₇Al₁₂) particles.