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基于微弧氧化和电化学沉积在纯Ti基体表面制备FHAP/MAO复合涂层的腐蚀行为和机械性能研究
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浙江工业大学材料科学与工程学院

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The Corrosion Behavior and Mechanical Properties of fluorine doped hydroxyapatite/Micro-arc oxidation (MAO) composite coating on the pure titanium substrate using a combination of micro-arc oxidation and electrochemical deposition method
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College of Materials Science and Engineering,Zhejiang University of Technology

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    摘要:

    本论文采用微弧氧化和电化学沉积(ED)技术在工业纯钛(CPTi)表面沉积氟掺杂羟基磷灰石(FHAP)/微弧氧化(MAO)复合涂层。并在Hsnk"s溶液中对未涂覆的CPTi基材和涂覆的样品进行电化学耐腐蚀性测试。本文研究了MAO界面层对涂层微观结构,力学性能和电化学性能的影响。结果表明,HAP / Ti,FHAP / Ti和FHAP / MAO / Ti复合涂层样品在模拟Hank"s溶液中显着提高了CPTi基体的耐腐蚀性能。然而,力学性能测试表明,与具有MAO界面层的FHAP / Ti涂层的结合强度(18.1MPa)相比,FHAP / Ti涂层的结合强度较差(10.7MPa)。此外,FHAP / MAO / Ti涂层与去离子水的接触角约为35.8°,这更有利于促进细胞附着和增殖。

    Abstract:

    In this thesis, a fluorine-doped hydroxyapatite (FHAP)/Micro-arc oxidation (MAO) composite coating is deposited on commercially pure titanium (CPTi) surface through micro-arc oxidation and electrochemical deposition (ED) technique. Simulative Hank"s solution is used to test the electrochemical corrosion resistance of uncoated CPTi substrate and coated samples. The impact of MAO interface layer on the micro-structural, mechanical property, and electrochemical property of coating is studied in this article. Results show that the deposited HAP/Ti, FHAP/Ti and FHAP/MAO/Ti coated samples dramatically improved the anticorrosion of the CPTi substrate in the simulative Hank"s solution. However, the mechanical properties testing show that FHAP/Ti coating has a poor bonding strength of 10.7 MPa compared to that of FHAP/Ti coating with a MAO interface layer (18.1 MPa). Furthermore, the contact angle of the FHAP/MAO/Ti coating with deionized water is approximately 35.8°, which is more beneficial to promote cell attachment and proliferation.

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金杰,周树伟,郑大才.基于微弧氧化和电化学沉积在纯Ti基体表面制备FHAP/MAO复合涂层的腐蚀行为和机械性能研究[J].稀有金属材料与工程,2019,48(6):1725~1733.[Jin Jie, Shuwei Zhou, Dacai Zheng. The Corrosion Behavior and Mechanical Properties of fluorine doped hydroxyapatite/Micro-arc oxidation (MAO) composite coating on the pure titanium substrate using a combination of micro-arc oxidation and electrochemical deposition method[J]. Rare Metal Materials and Engineering,2019,48(6):1725~1733.]
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  • 收稿日期:2018-02-02
  • 最后修改日期:2019-04-28
  • 录用日期:2018-08-08
  • 在线发布日期: 2019-07-30
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