Microstructure and Corrosion Resistance of Anodized Mg-9mass%Li-1mass%Zn Alloy

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著者

    • LIU Yih-Ming
    • Department of Applied Chemistry & Materials Science, Chung Cheng Institute of Technology, National Defense University
    • GER Ming-Der
    • Department of Applied Chemistry & Materials Science, Chung Cheng Institute of Technology, National Defense University

抄録

This research used pulse and direct current methods to perform surface anodizing treatment of Mg-9 mass%Li-1 mass%Zn alloy (LZ91). The anodic films were analyzed with electrochemical impedance spectroscopy (EIS) for corrosion resistance. The impedance measurements show that the resistance value of anodic films made by pulse current to be 100 KΩ at 2×10<SUP>−2</SUP> A/m<SUP>2</SUP> and those made by direct current anodic films to be 65 KΩ at 2×10<SUP>−2</SUP> A/m<SUP>2</SUP>. It reveals that pulse current makes better anodic films than direct current. There were two layers in the anodic films that were verified from the EIS phase angle diagram in which three time constants existed. The structure of the film was analyzed by a FE-SEM, and the microstructure observation showed that the anodic film consists of porous and barrier layers.

収録刊行物

  • Materials transactions

    Materials transactions 49(6), 1355-1358, 2008-06-01

    The Japan Institute of Metals and Materials

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各種コード

  • NII論文ID(NAID)
    10021147597
  • NII書誌ID(NCID)
    AA1151294X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13459678
  • NDL 記事登録ID
    9519297
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z53-J286
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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