最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級檢索
20% Al2O3-SiO2(sf)/AZ91D鎂基復合材料微弧氧化陶瓷層電化學腐蝕性能
DOI:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家自然科學基金項目（51071031）；北京市自然科學基金項目（2102018）


Electrochemical Corrosion Property of Microarc Oxidation Ceramic Coatings on 20vol% Al2O3-SiO2(sf)/AZ91D Magnesium Matrix Composite
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計
    • |
  • 參考文獻
    • |
  • 相似文獻
    • |
  • 引證文獻
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    在磷酸鹽體系電解液中，對20%(體積分數(shù))硅酸鋁短纖維(Al2O3-SiO2)增強AZ91D鎂基復合材料進行微弧氧化表面處理獲得陶瓷層。利用掃描電子顯微鏡(SEM)和X射線衍射(XRD)儀分析陶瓷層的表面形貌、截面組織和相組成，采用動電位極化和電化學阻抗譜(EIS)測試評價微弧氧化陶瓷層的電化學腐蝕性能。結果表明，該陶瓷層主要由MgO和MgAl2O4相組成。陶瓷層的腐蝕電流密度比鎂基復合材料基體低3個數(shù)量級，電化學阻抗大幅升高，耐腐蝕性能明顯高于復合材料基體

    Abstract:

    Ceramic coatings were prepared on 20vol% Al2O3-SiO2(sf)/AZ91D magnesium matrix composites by microarc oxidation (MAO) technique in a phosphate electrolyte. Scanning electron microscope (SEM) and X-ray diffraction (XRD) were employed to analyze the surface morphology, cross-section microstructure and phase composition of the coated composites. The electrochemical corrosion property of coatings was evaluated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The results show that the ceramic coating mainly consists of MgO and MgAl2O4. The corrosion current density of ceramic coating decreases nearly by three orders of magnitude compared with magnesium matrix composite substrate while its electrochemical impedance increases greatly. The magnesium matrix composites treated by microarc oxidation display good corrosion resistance

    參考文獻
    相似文獻
    引證文獻
引用本文

朱慶振,薛文斌,吳曉玲,魯 亮,劉貫軍,李文芳.20% Al2O3-SiO2(sf)/AZ91D鎂基復合材料微弧氧化陶瓷層電化學腐蝕性能[J].稀有金屬材料與工程,2011,40(5):911~916.[Zhu Qingzhen, Xue Wenbin, Wu Xiaoling, Lu Liang, Liu Guanjun, Li Wenfang. Electrochemical Corrosion Property of Microarc Oxidation Ceramic Coatings on 20vol% Al2O3-SiO2(sf)/AZ91D Magnesium Matrix Composite[J]. Rare Metal Materials and Engineering,2011,40(5):911~916.]
DOI：[doi]

復制
文章指標
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2010-05-05
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: