Deposition and evaluation of duplex hydroxyapatite and plasma electrolytic oxidation coatings on magnesium
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- 影响因子：4.158
- DOI码：10.1016/j.surfcoat.2015.01.030
- 发表刊物：Surface and Coatings Technology
- 摘要：Multifunctional hydroxyapatite (HA)-magnesia coatings were formed on Mg by plasma electrolytic oxidation (PEO) followed by cathodic electrodeposition. The coating corrosion performance was evaluated in-vitro by potentiodynamic polarisation and electrochemical impedance spectrosdopy. Exposure to the physiological environment increased Ca/P ratio of the single PEO coating and decreased. it for the duplex HA-PEO coating. Corrosion resistance of Mg was improved by the PEO coating and further enhanced by the HA layer. Corrosion pits were observed after the tests on both coatings. The proposed corrosion mechanism includes electrolyte penetration, coating chemical dissolution and anodic dissolution of Mg.
- 合写作者：Allan Matthews
- 第一作者：Yonghao Gao
- 论文类型：期刊论文
- 通讯作者：Aleksey Yerokhin
- 论文编号：WOS:000353747000021
- 学科门类：工学
- 一级学科：材料科学与工程
- 文献类型：J
- 卷号：269
- 页面范围：170-182
- ISSN号：0257-8972
- 是否译文：否
- 发表时间：2015-05-15
- 收录刊物：SCI、EI
