A MANGANESE OXIDE CONTAINED COATING FOR BIODEGRADABLE AZ31B MAGNESIUM ALLOY

被引：4

作者：

Yan, Tingting ^{[1
,2
]}

Tan, Lili ^{[2
]}

Xiong, Dangsheng ^{[1
]}

Zhang, Bingchun ^{[2
]}

Yang, Ke ^{[2
]}

机构：

[1] Nanjing Univ Sci & Technol, Dept Mat Sci & Engn, Nanjing 210094, Peoples R China

[2] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China

来源：

SURFACE REVIEW AND LETTERS | 2009年 / 16卷 / 04期

基金：

中国国家自然科学基金;

关键词：

AZ31B magnesium alloy; conversion coating; corrosion resistance; hemolysis;

D O I：

10.1142/S0218625X09012937

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：

A manganese oxide contained coating was prepared on biodegradable AZ31B magnesium alloy to control the degradation of AZ31B and improve its biocompatibility. Morphology, composition, and corrosion resistance of the coating were studied. The SEM observations showed that the coating was approximately 4-6 mu m in thickness with net-like microcracks. The XPS analysis indicated that the coating was mainly composed of MgO, Mg(OH)(2), MnO2, Mn2O3, and Mn3O4. It was found that AZ31B with such coating showed better corrosion resistance in simulated blood plasma through electrochemical and immersion tests. The hemolytic assay indicated that the treated AZ31B had no hemolytic effect.

引用

页码：533 / 538

页数：6