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Development of CWD process for surface treatment of magnesium

Research Project

Project/Area Number 22656159
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Material processing/treatments
Research InstitutionTohoku University

Principal Investigator

HARA Nobuyoshi  東北大学, 大学院・工学研究科, 教授 (40111257)

Co-Investigator(Kenkyū-buntansha) MUTO Izumi  東北大学, 大学院・工学研究科, 准教授 (20400278)
AKAO Noboru  東北大学, 大学院・工学研究科, 助手 (80222503)
Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥3,460,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2010: ¥1,900,000 (Direct Cost: ¥1,900,000)
Keywords腐食防食 / マグネシウム / 耐食性 / 表面処理 / ハイドロタルサイト / 乾湿繰り返し / 化学組成 / 結晶構造
Research Abstract

In order to develop a cyclic wet-dry (CWD)process as a new surface treatment method for improving corrosion resistance of Mg alloys, the composition of starting solution, the process conditions and the corrosion resistance of reaction products have been examined. It was found that hydrotalcite ((Mg_6Al_2(OH)_<16> CO_3・4H_2O))or hydrotalcite-like compounds can be formed under well-controlled CWD conditions using NaCl+ AlCl_3 or Na_2SO_4+ Al_2(SO_4)_3 solutions and they improves the corrosion resistance of Mg alloys.

Report

(3 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • Research Products

    (5 results)

All 2011

All Presentation (5 results)

  • [Presentation] Formation of hydrotalcite-like compound films on Mg allo2011

    • Author(s)
      U. K. Cho, Yu Sugawara, Izumi Muto, and Nobuyoshi Hara
    • Organizer
      International Symposium of Materials Integration
    • Place of Presentation
      仙台江陽グランドホテル
    • Year and Date
      2011-12-01
    • Related Report
      2011 Final Research Report
  • [Presentation] Formation of hydrotalcite-like compound films on Mg alloy2011

    • Author(s)
      U.K.Cho
    • Organizer
      International Symposium of Materials Integration
    • Place of Presentation
      仙台
    • Year and Date
      2011-12-01
    • Related Report
      2011 Annual Research Report
  • [Presentation] Development of a New Environmentally-friendly Surface Treatment Method for Improving Corrosion Resistance of Magnesium Alloys by Formation of Hydrotalcite-like Compound Films2011

    • Author(s)
      U. K. Cho, Yu Sugawara, Izumi Muto, and Nobuyoshi Hara
    • Organizer
      第58回材料と環境討論会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2011-09-29
    • Related Report
      2011 Final Research Report
  • [Presentation] Development of a New Environmentally-friendly Surface Treatment Method for Improving Corrosion Resistance of Magnesium Alloys by Formation of Hydrotalcite-like Compound Films2011

    • Author(s)
      U.K.Cho
    • Organizer
      第58回材料と環境討論会
    • Place of Presentation
      名古屋
    • Year and Date
      2011-09-29
    • Related Report
      2011 Annual Research Report
  • [Presentation] Formation of Hydrotalcite-like Compounds for Improving Corrosion Resistance of Magnesium Alloys2011

    • Author(s)
      U. K. Cho, Yu Sugawara, Izumi Muto, and Nobuyoshi Hara
    • Organizer
      日本金属学会2011年春期大会
    • Place of Presentation
      東京都市大学
    • Year and Date
      2011-03-27
    • Related Report
      2011 Final Research Report 2010 Annual Research Report

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Published: 2010-08-23   Modified: 2016-04-21  

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