Improvement of mechanical properties and saline corrosion resistance of extruded Mg-8Gd-4Y-0.5Zr by alloying with 2 wt.% Zn

被引：6

作者：

Nguyen Dang Nam ^{[1
]}

Bian, Ming Zhe ^{[2
]}

机构：

[1] PetroVietnam Univ, Long Toan Ward, 752 Cach Mang Thang Tam St, Ba Ria City, Ba Ria Vung Tau, Vietnam

[2] CSIRO Mfg, Clayton, Vic 3168, Australia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 711卷

关键词：

Magnesium; EIS; Polarization; SEM; Interfaces; MAGNESIUM ALLOYS; CRYSTALLOGRAPHIC ORIENTATION; BEHAVIOR; MICROSTRUCTURE; GD; SUPERPLASTICITY; PERFORMANCE; FABRICATION; EXTRUSION; AZ31;

D O I：

10.1016/j.jallcom.2017.03.317

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An enhancement of tensile and compressive yield strengths, ultimate tensile and compressive strengths and hardness of extruded Mg-8Gd-4Y-0.5Zr have been achieved by alloying with 2 wt.% Zn. Corrosion resistance of the extruded Mg-8Gd-4Y-0.5Zr alloy in saline solutions is also improved by alloying with 2 wt.% Zn. These enhancements could be attributed to the suppression of Mg(Gd,Y) intermetallic phases and the inducement of MgZn precipitation in the Mg matrix along with grain refinement, resulting in an improvement of mechanical properties and corrosion resistance. In addition, an interaction of Zn oxide with Mg, Gd, Y, and Zr products serve as a corrosion barrier by alloying with Zn. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：215 / 221

页数：7

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