Effects of Nd/Gd ratio on the microstructures and mechanical properties of Mg-Gd-Y-Nd-Zr alloys

被引：0

作者：

Liu, Xuan ^{[1
]}

Le, Qichi ^{[1
]}

Zhang, Zhiqiang ^{[1
]}

Bao, Lei ^{[1
]}

Cui, Jianzhong ^{[1
]}

机构：

[1] Northeastern Univ, Minist Educ, Key Lab Electromagnet Proc Mat, Shenyang 110819, Peoples R China

来源：

INDIAN JOURNAL OF ENGINEERING AND MATERIALS SCIENCES | 2015年 / 22卷 / 01期

关键词：

Mg-Gd-Y-Nd-Zr alloy; Microstructure; Inverted extrusion; Mechanical properties; MASS-PERCENT ALLOYS; DYNAMIC RECRYSTALLIZATION; MG-10GD-2Y-0.5ZR ALLOY; HOT COMPRESSION; HIGH-STRENGTH; MAGNESIUM; BEHAVIOR; PRECIPITATION; EXTRUSION;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Three Mg-Gd-Y-Nd-Zr alloys with different Nd/Gd ratios (0.2, 0.5 and 1) are prepared by metal mould casting method. The microstructures and mechanical properties have been investigated. The Nd/Gd ratio has a great influence on the volume fraction of the second phase of the Mg-Gd-Y-Nd-Zr alloys. Volume fraction of the second phase increases with the Nd/Gd ratio increasing. The mechanical properties of the alloys do not get decreased when the Nd/Gd ratio rises up. It should be ascribed to the equal cumulative effect of solid solution strengthening and second phase strengthening. The as-extruded Mg-Gd-3Y-6Nd-0.6Zr has the best mechanical properties and lowest Gd addtion, and its ultimate tensile strength, yield strength and elongation are 336 MPa, 300 MPa and 2.5%, respectively.

引用

页码：14 / 22

页数：9

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