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Ti-6Al-4V微弧氧化陶瓷膜微觀結(jié)構(gòu)與組成研究
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TG174.451

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國家自然科學(xué)基金項目（50172052;50271080）和中科院百人計劃


Structure and Composition of Surface and Interface of Micro-Arc Oxide Ceramic Layer on Ti-6Al-4V Alloy
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    摘要:

    在NaAlO2，Na3PO4混合電解液中，利用微弧氧化（MAO）技術(shù)在Ti-6Al-4V合金表面制備了氧化物陶瓷膜。用掃描電鏡（SEM），能量散射譜儀（EDS），X射線光電子能譜儀（XPS）對氧化物陶瓷膜的微觀結(jié)構(gòu)與組成進(jìn)行了分析。結(jié)果表明：微弧氧化陶瓷膜表面和界面均呈現(xiàn)多孔結(jié)構(gòu)，表面孔徑大小差別較大，界面孔徑大小差別較小，氧化膜界面處較規(guī)則地平行排列著一些長丘陵狀突起；氧化膜疏松層與致密層無明顯界限，氧化膜與基底以犬牙交錯狀結(jié)合。EDS分析結(jié)果表明，氧化膜表面、界面均由Ti，Al，P，V元素組成，Al元素易在表面富集，P元素易在界面富集。XPS分析結(jié)果表明，氧化膜表面、界面存在TiO2，Al2O3，TiAl2O5等相，P元素均以PO4^3-形式存在；氧化膜界面處存在V2O5相，而表面并不存在V元素。

    Abstract:

    Oxide ceramic layer was obtained on Ti-6Al-4V alloy in NaAlO_2, Na_3PO_4 mixed solution by micro-arc oxidation (MAO) technique. The structure and composition of MAO coatings were analyzed by scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). The results show: the surface and interface have the porous structure, but the difference between the diameter of pores in surface is quite large, the difference in interface is quite small, and there are some long hill paralleled to each other in interface. There is no obvious boundary between the loose layer and dense layer. The interface between the substrate and MAO coatings has a z-zig structure. The surface and interface are composed of Ti, Al, V, P elements, and Al element is inclined to enrich in surface, but P element enriched in interface according to EDS results. TiO_2, Al_2O_3, TiAl_2O_5 phases are identified in surface and interface, and the P element exists in PO_4~(3-) radical according to XPS analysis. V_2O_5 phase can be found in the interface and V element does not exist in the surface according to XPS analysis.

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郭寶剛 梁軍 田軍 劉惠文 徐洮. Ti-6Al-4V微弧氧化陶瓷膜微觀結(jié)構(gòu)與組成研究[J].稀有金屬材料與工程,2005,34(12):1897~1900.[Guo Baogang, Liang Jun, Tian Jun, Liu Huiwen, Xu Tao. Structure and Composition of Surface and Interface of Micro-Arc Oxide Ceramic Layer on Ti-6Al-4V Alloy[J]. Rare Metal Materials and Engineering,2005,34(12):1897~1900.]
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  • 收稿日期:2004-09-05
  • 最后修改日期:2004-09-05
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