Effects of Sb and Sm on Microstructure and Mechanical Properties of AZ61 Alloy

被引：0
|
作者：
Chen Yu'an [1 ,2 ]
Ye Ruiyu [1 ]
Song Yu [1 ]
Jin Li [1 ]
Liu Hao [1 ]
Pan Fusheng [1 ,2 ]
机构：
[1] Chongqing Univ, Chongqing 400044, Peoples R China
[2] Natl Engn Ctr Magnesium Alloys, Chongqing 400044, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2016年 / 45卷 / 06期
关键词：
AZ61; Sm; Sb; hot-extruded; T5; MAGNESIUM ALLOYS; BEHAVIOR; ADDITIONS;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The as-cast AZ61-1Sm-xSb alloys were prepared. The alloy samples were hot extruded and some of the hot-extruded alloys were aged (T5). The effects of Sm and Sb on the microstructure and properties the AZ61 alloys were investigated by XRD, OM, SEM, TEM and so on. Results show that the main phases of AZ61-1Sm-xSb alloys are beta-Mg17Al12, Al2Sm, Al3Sm and SbSm. Compared with AZ61 alloy, the Mg17Al12 in AZ61-1Sm alloy is distributed discontinuously as nets. However, the discontinuous distribution of Mg17Al12 is more obvious in AZ61-1Sm-xSb alloys and acicular SbSm phase appears. When the content of Sb is 1.5 wt%, bulky SmSb occurs while beta-Mg17Al12, Al2Sm and Al3Sm are dispersed as particles. Addition of Sm and Sb can increase the mechanical properties of hot-extruded and T5 AZ61 alloys. Moreover, adding Sb into AZ61-1Sm alloy can enhance its strength at 150 degrees C obviously.
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页码：1488 / 1494
页数：7
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