Preparation of phosphate ion-doped Zn-Fe-layered double hydroxide with corrosion resistance and inducing Ca-P deposition on AZ31 Mg alloy

被引:5
|
作者
Zheng, Bo [1 ]
Ou, Jun [1 ]
Li, Hanyang [2 ]
Zhou, Zhiwei [1 ]
Qin, Aimiao [1 ]
Zhang, Kaiyou [1 ]
Wang, Xiuli [3 ]
机构
[1] Guilin Univ Technol, Coll Mat Sci & Engn, Guilin 541004, Peoples R China
[2] Guilin Med Univ, Guilin 541001, Peoples R China
[3] Guilin Univ Technol, Coll Chem & Bioengn, Guilin 541006, Peoples R China
关键词
IN-VITRO CORROSION; MAGNESIUM ALLOYS; BIODEGRADATION; DEGRADATION; MECHANISM; IMPLANTS; COATINGS; TITANIUM; ANIONS; FILM;
D O I
10.1557/s43578-021-00434-9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The unique compatibility of degradable Mg alloys with the human body has inspired their investigations as suitable orthopedic implants, but their clinic applications are limited by their high corrosion rates. To improve the corrosion resistance and biocompatibility of Mg alloys, Zn-Fe with interlayer phosphate ion-layered double hydroxide (ZnFe-PO43- LDH) film was prepared by hydrothermal treatment. Electrochemical tests and hydrogen evolution tests demonstrated that AZ31 Mg alloy with ZnFe-PO43- LDH film had better corrosion resistance, and that the released interlayer PO43- could combine with Ca2+ to generate Ca-P deposition. The results of cell viability test indicated that the ZnFe-PO43- LDH significantly promoted the proliferation and adhesion of MC3T3-E1 cells. ZnFe-PO43- LDH in the present study showed a promising application in improving anticorrosion and biocompatibility of Mg alloys and might act as a platform for a further modification of Mg alloys ascribed to its special layer structure.
引用
收藏
页码:763 / 772
页数:10
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