Low temperature superplasticity of hydrostatically extruded Mg-Al-Zn alloys

被引：3
|
作者：
Victoria-Hernandez, Jose [1 ]
Hernandez-Silva, David [2 ]
Bohlen, Jan [1 ]
Yi, Sangbong [1 ]
Letzig, Dietmar [1 ]
机构：
[1] Helmholtz Zentrum Geesthacht, Magnesium Innovat Ctr MagIC, Max Planck Str 1, D-21502 Geesthacht, Germany
[2] Inst Politecnico Nacl ESIQIE, Dept Met Engn, 07738 Mexico City, DF, Mexico
来源：
SUPERPLASTICITY IN ADVANCED MATERIALS | 2013年 / 735卷
关键词：
Hydrostatic extrusion; wrought magnesium alloys; dynamic recrystallization; deformation mechanisms; superplasticity; MAGNESIUM ALLOY; MECHANICAL-PROPERTIES; DEFORMATION; EXTRUSION; SHEETS; AZ31; TEXTURE; AZ61;
D O I：
10.4028/www.scientific.net/MSF.735.307
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, the superplastic behavior of AZ31, AZ61 and AZ80 magnesium alloys was investigated. The alloys were hydrostatically extruded at only 150 degrees C to get fine grained microstructures (<10 mu m). Tension tests were carried out at 175, 200 and 225 degrees C and 10(-2), 10(-3) and 10(-4) s(-1). It was found that all alloys exhibited superplasticity at 200 degrees C, 175 degrees C and 225 degrees C for AZ31, AZ61 and AZ80 alloys, respectively. Low temperature dynamic recrystallization played an important role for generating a finer and homogeneous microstructure during testing which enhances the deformation behavior of the alloys at these temperatures.
引用
收藏
页码：307 / +
页数：2
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