Microstructure and Corrosion Behavior of Extruded Mg-Zn-Er Alloys

被引：4

作者：

Bhat Panemangalore, Devadas ^{[1
]}

Shabadi, Rajashekhara ^{[1
]}

Gupta, Manoj ^{[2
]}

Ambat, Rajan ^{[3
]}

Ji, Gang ^{[1
]}

Addad, Ahmed ^{[1
]}

Lesven, Ludovic ^{[4
]}

机构：

[1] Univ Lille, CNRS, INRA, ENSCL,Unite Mat & Transformat,UMR 8207, F-59000 Lille, France

[2] Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore

[3] Tech Univ Denmark, Dept Mech Engn, DK-2800 Lyngby, Denmark

[4] Univ Lille, CNRS, UMR 8516, LASIR Lab Spectrochim Infrarouge & Raman, F-59000 Lille, France

来源：

THERMEC 2018: 10TH INTERNATIONAL CONFERENCE ON PROCESSING AND MANUFACTURING OF ADVANCED MATERIALS | 2018年 / 941卷

关键词：

Magnesium; Rare-earth; Corrosion; MAGNESIUM; RESISTANCE; ZR;

D O I：

10.4028/www.scientific.net/MSF.941.1766

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The current medical technology necessitates the usage of biodegradable metals like Magnesium (Mg) as the future implant material due to the numerous benefits it can provide. Therefore, new Magnesium-based rare earth alloys targeting biomedical applications were synthesized using Disintegrated Melt Deposition (DMD) technique followed by hot-extrusion. In this investigation, Zinc (Zn) and Erbium (Er) were chosen as alloying elements to provide suitable strengthening effect and Mg-2Zn, Mg-2Zn-2Er alloys were synthesized. With the addition of alloying elements, the grain size was reduced and several MgZn intermetallics were formed. Corrosion studies of as-extruded materials were done in 0.5 wt.% NaCl solution to elucidate the microstructure-corrosion relationship. Improved corrosion resistance is seen in the alloys in comparison to pure Magnesium. Addition of Erbium is seen to improve the protectiveness of the surface film formed during immersion. Both these elements have proven to increase the corrosion potential of Mg in NaCl solution.

引用

页码：1766 / 1771

页数：6

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