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硫化銦對ZL108鋁合金微弧氧化膜層結(jié)構(gòu)和耐腐蝕性能的影響
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1.西南石油大學(xué) 材料科學(xué)與工程學(xué)院;2.西華大學(xué) 材料科學(xué)與工程學(xué)院;3.電子科技大學(xué) 物理學(xué)院

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中國博士后科學(xué)基金資助項目(2019M663470)


Effects of Indium sulfide on structure and corrosion resistance of the micro-arc oxidation coating on ZL108 alloy
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Project funded by China Postdoctoral Science Foundation (2019M663470)

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    摘要:

    在含有 In2S3的硅酸鹽電解液中對ZL108 鋁合金進(jìn)行了微弧氧化處理。采用掃描電鏡(SEM)、光學(xué)輪廓儀、X射線衍射(XRD)、X射線光電子能譜（XPS）和電化學(xué)工作站等檢測手段，研究了添加In2S3對 MAO 膜層微觀結(jié)構(gòu)、相組成和耐蝕性等的影響。結(jié)果表明，In2S3的加入提高了微弧氧化電壓，使膜層成膜速率增加，從而導(dǎo)致膜層厚度增加。在含有In2S3的電解液中形成的膜層致密性更好，膜層顯微硬度提高，膜層的耐蝕性增強(qiáng)。膜層主要由α-Al2O3、γ-Al2O3和 SiO2 相組成。XPS檢測結(jié)果表明In2S3在氧化過程中轉(zhuǎn)變?yōu)镮n2O3。因此，添加In2S3優(yōu)化了MAO膜層結(jié)構(gòu)，提高了MAO膜層的綜合性能。

    Abstract:

    Different micro-arc oxidation coatings were fabricated on ZL108 alloy in the silicate electrolyte without and with In2S3. Scanning electron mi-croscope (SEM), Optical Profiler, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and electrochemical workstation and so on were used to study the influence of In2S3 on the microstructure, phase composition, corrosion resistance，micro-hardness and thickness of the MAO coating. The results showed that the addition of In2S3 can increase the voltage of the MAO, promote the MAO coating formation rate and increase the coating thickness. The coating formed containing In2S3 was denser and the micro-hardness of the coating was increased. Therefore, the corrosion resistance of the coating with In2S3 was improved. The main phases of all the MAO coating were α-Al2O3, γ-Al2O3 and SiO2. The XPS result showed that In2O3 was formed on the coating surface. As a consequence, adding In2S3 can optimize the structure of the MAO coating and enhance its comprehensive properties.

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引用本文

王平,胡杰,李瑞陽,龔澤宇,劉濟(jì)威,熊丹,向東,魏曉偉,祖小濤.硫化銦對ZL108鋁合金微弧氧化膜層結(jié)構(gòu)和耐腐蝕性能的影響[J].稀有金屬材料與工程,2021,50(1):56~62.[wang ping, Hu jie, Li Ruiyang, Gong Zeyu, Liu Jiwei, Xiong Dan, Xiang Dong, Wei Xiaowei, Zu Xiaotao. Effects of Indium sulfide on structure and corrosion resistance of the micro-arc oxidation coating on ZL108 alloy[J]. Rare Metal Materials and Engineering,2021,50(1):56~62.]
DOI：10.12442/j. issn.1002-185X.20191008

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  • 收稿日期:2019-11-29
  • 最后修改日期:2019-12-05
  • 錄用日期:2019-12-10
  • 在線發(fā)布日期: 2021-02-05
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