Effects of Sm on microstructures and mechanical properties of Mg-6Al-1.2Y-0.9Nd alloys

被引：0

作者：

Li, Kejie ^{[1
,2
]}

Li, Quanan ^{[2
]}

Jing, Xiaotian ^{[1
]}

Chen, Jun ^{[2
]}

Zhang, Xingyuan ^{[2
]}

Zhang, Qing ^{[2
]}

机构：

[1] Xi'an University of Technology, Xi'an 710048, China

[2] Henan University of Science and Technology, Luoyang 471003, China

来源：

Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | 2010年 / 39卷 / 01期

关键词：

Aluminum alloys - Samarium alloys - Binary alloys - Fracture - Magnesium alloys - Neodymium alloys - Samarium - Tensile strength;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Microstructures and mechanical properties of Mg-6Al-1.2Y-0.9Nd magnesium alloy with Sm addition were investigated through OM, SEM, EDS and XRD. The results show that Sm combines firstly with Al to form dispersed, high-melting-point particles which are mainly Al2Sm phase. When the mass fraction of Sm is high from 1.5% to 2.0%, the acicular Mg12Nd phase appears in the alloy. With the increase of Sm content within the range from 0 to 2.0%, the tensile strength of alloys at ambient and elevated temperature firstly increases slightly, and then decreases; while the elongation decreases continuously. The tensile fracture of the alloy is quasi-cleavage failure with plastic characteristic.

引用

页码：96 / 100

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