Solution Treatment as Pretreatment for Corrosion Resistance and Cytocompatibility of Micro-Arc Oxidation Coating on Biodegradable Mg Alloy

被引：1
作者：
Shen, Ying [1 ]
Wang, Guiyang [2 ]
Tu, Hao [1 ]
Kolawole, Sharafadeen Kunle [3 ]
Su, Xuping [1 ]
Chen, Junxiu [1 ]
机构：
[1] Changzhou Univ, Key Lab Mat Surface Sci & Technol Jiangsu Prov, Changzhou 213164, Peoples R China
[2] China Special Equipment Inspect & Res Inst, Beijing 100029, Peoples R China
[3] Fed Polytech, Sch Engn & Technol, Mech Engn Dept, Offa PMB 420, Offa, Nigeria
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2024年 / 33卷 / 05期
基金：
中国国家自然科学基金;
关键词：
coating adhesion; corrosion resistance; cytocompatibility; Mg alloys; micro-arc oxidation; solution treatment; PLASMA ELECTROLYTIC OXIDATION; MAGNESIUM ALLOYS; IN-VITRO; BEHAVIOR;
D O I：
10.1007/s11665-023-08346-x
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of solution treatment on the corrosion resistance and cytocompatibility of micro-arc oxidation (MAO) coating on biodegradable Mg-2Zn-1Gd-0.5Zr alloy were studied in this work. Microstructural characterization, coating adhesion, electrochemical, immersion and cytocompatibility tests were carried out. The results demonstrated that the MAO coating was much more uniform after solution treatment with coating adhesion enhanced by about 30% compared with the as-extruded + MAO coated. Moreover, the corrosion resistance of the solution treated + MAO coated samples was respectively improved by more than 20% and twice, compared with as-extruded + MAO coated and as-extruded samples. In addition, solution treatment further improved the cell viability of the MAO coating of the alloy with the RGR exceeding 90% during the entire culture period with MG63 cells. Consequently, solution treatment is recommended as a preferred pretreatment for improving the corrosion resistance and cytocompatibity of MAO-coated Mg alloys.
引用
收藏
页码：2403 / 2413
页数：11
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