Investigation of Zinc and Phosphorus Elements Incorporated into Micro-Arc Oxidation Coatings Developed on Ti-6Al-4V Alloys.
Investigation of Zinc and Phosphorus Elements Incorporated into Micro-Arc Oxidation Coatings Developed on Ti-6Al-4V Alloys.
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Ti-6Al-4V 合金微弧氧化涂层中掺入锌和磷元素的研究
DOI：
10.3390/ma11030344
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发表时间：
2018-02-27
期刊：
影响因子：
--
通讯作者：
Zhao Y
中科院分区：
文献类型：
--
作者：
Wang Y;Zeng L;Zhang H;Xiang J;Zhang S;Chang W;Zhang R;Wang Q;Sheng Y;Zhao Y
为了研究Ti-6Al-4V合金微弧氧化膜中锌、磷元素的进入机理，采用四因素三水平正交试验，在含EDTA-ZnNa 2、KOH和植酸的电解液中制备了不同锌、磷含量的阳极氧化膜。采用扫描电子显微镜（SEM）、X射线能谱仪（EDS）、X射线光电子能谱仪（XPS）和X射线衍射仪（XRD）对微弧氧化膜的表面形貌、元素组成、化学状态和相结构进行了表征。通过电感耦合等离子体发射光谱法（ICP-OES）分析电解液中锌和磷的浓度。结果表明，微弧氧化膜中锌、磷元素以Zn 3（PO 4）2的形式存在。植酸是影响微弧氧化膜层锌、磷含量的主要因素。随着植酸浓度的增加或KOH浓度的降低，微弧氧化膜中锌和磷的含量呈现出相似的增加趋势。结果表明，磷主要通过扩散参与膜层的形成，而锌则通过植酸与磷一起进入膜层。
In order to clarify the mechanism that zinc and phosphorus elements entering the micro-arc oxidation (MAO) coatings developed on Ti-6Al-4V alloys, anodic coatings containing different zinc and phosphorus were fabricated using an orthogonal experiment of four factors with three levels in an electrolyte containing EDTA-ZnNa2, KOH, and phytic acid. Surface morphology, element composition, chemical state and phase structure of MAO coatings were characterized by scanning electron microscope (SEM), energy dispersive X-ray spectrometer (EDS), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The concentrations of zinc and phosphorus in the electrolyte were analyzed by an inductively coupled plasma optical emission spectrometry (ICP-OES). The results show that zinc and phosphorus elements in MAO coatings exist in the form of Zn3(PO4)2. Phytic acid is the most important factor on both zinc and phosphorus contents of MAO coatings. With the increase of phytic acid concentration or the decrease of KOH concentration, the contents of zinc and phosphorus in MAO coatings present a similarly increasing tendency. Our results indicate that phosphorus takes part in coating formation mainly by diffusion, while zinc enters into MAO coatings with phosphorus from phytic acid.
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影响因子：
6.7
作者：
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通讯作者：
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DOI：
10.3390/ma9050318
发表时间：
2016-04-27
期刊：
Materials (Basel, Switzerland)
影响因子：
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