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Title page for etd-0724112-155925


URN etd-0724112-155925 Statistics This thesis had been viewed 3583 times. Download 5085 times.
Author Wei-Ping Jhou
Author's Email Address No Public.
Department Materials Engineering
Year 2011 Semester 2
Degree Master Type of Document Master's Thesis
Language zh-TW.Big5 Chinese Page Count 95
Title The technology of micro-arc oxidation black coating on AZ91D magnesium alloys
Keyword
  • blacken
  • magnesium alloy
  • Micro-arc oxidation
  • Micro-arc oxidation
  • magnesium alloy
  • blacken
  • Abstract The anodized oxide film of magnesium alloy has many defects(poor bond strength, low wear and corrosion resistance, easy fading , uneven color, etc) in traditional surface coloring technology. These defects have largely limited the applications of magnesium alloy. In this paper, black ceramic film with uniform color, smooth surface, compact structure and excellent corrosion on AZ91D alloys was successfully obtained by micro-arc oxidation. 
     Micro-arc oxidation (MAO) is a new electrochemical surface treatment technology, suitable for treating the aluminum, magnesium and titanium and other light metal alloys. In electrolyte by the arc discharge plasma generated of the substrate oxidation and high temperature melting, the film were formed with high hardness and corrosion resistance. In order to blacken the magnesium alloy AZ91D under plasma electrolytic oxidation (MAO) technology in silicate electrolyte containing copper sulfate and individual concentrations of K2FeO4, the characteristics of MAO coatings formed at different treatment time were investigated and dectection by XRD、 SEM 、XPSand color analysis instrument.
    Advisor Committee
  • Mu-Rong Yang - advisor
  • Chia-Jung, HU - co-chair
  • Jeou-log Lee - co-chair
  • Files indicate access worldwide
    Date of Defense 2012-06-02 Date of Submission 2012-07-24


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