Preparation and characterization of fluoride conversion coating on biodegradable AZ31B magnesium alloy

被引：0

作者：

Yan, Tingting ^{[1
,2
]}

Tan, Lili ^{[2
]}

Zhang, Bingchun ^{[2
]}

Yang, Ke ^{[2
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China

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

来源：

JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2014年 / 16卷 / 5-6期

关键词：

Magnesium; Fluoride; Conversion coating; Corrosion resistance; Bioactivity; IN-VIVO CORROSION; SURFACE; BIOACTIVITY; DEGRADATION; IMPLANTS; VITRO;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A compact fluoride conversion coating was prepared on AZ31B magnesium alloy by reaction with hydrofluoric acid. Morphology, composition and corrosion resistance of the coating were studied. The SEM examination showed that a compact film with some irregular distributed pores was formed on the surface of sample. The XPS analysis indicated that the coating was mainly composed of MgO and MgF2. Potentiodynamic polarization indicated that the fluoride conversion coating resulted in higher corrosion potential, lower corrosion current density, and a significant enhancement in corrosion resistance of AZ31B. The phosphate-calcium coating formed on the surface of fluoride treated AZ31B indicated a good bioactivity of the material.

引用

页码：562 / 567

页数：6

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