A novel biodegradable Mg-Nd-Zn-Zr alloy with uniform corrosion behavior in artificial plasma

被引：65

作者：

Mao, Lin

Yuan, Guangyin ^{[1
,2
]}

Wang, Shaohua

Niu, Jialin

Wu, Guohua ^{[2
]}

Ding, Wenjiang ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Natl Engn Res Ctr Light Alloy Net Forming, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Key State Lab Met Matrix Composite, Shanghai 200240, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 88卷

基金：

高等学校博士学科点专项科研基金;

关键词：

Biomaterials; Metals and alloys; Cyclic polarization; Uniform corrosion; Artificial plasma;

D O I：

10.1016/j.matlet.2012.08.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnesium alloys have been currently investigated as potential biodegradable implant materials. In this study, a patent Mg alloy Mg-Nd-Zn-Zr (Jiao Da BioMg, hereafter, denoted as JDBM) was researched as a potential biodegradable stent material in comparison with the clinical trial Mg alloy WE43. The corrosion behaviors of the as-extruded JDBM and WE43 were investigated in artificial plasma by in vitro degradation measurements and cyclic polarization tests. The results showed that the corrosion rate of JDBM was much lower than that of WE43 alloy. Most importantly, the JDBM alloy showed a uniform corrosion behavior in artificial plasma, which could avoid stress concentration as well as a rapid reduction in the mechanical integrity. The investigations indicated that the as-extruded JDBM alloy may be a promising implant material suitable for stent applications. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1 / 4

页数：4

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