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Development of thermal spray coatings with corrosion protecting and antifouling properties

Research Project

Project/Area Number 17360426
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Naval and maritime engineering
Research InstitutionNational Maritime Research Institute

Principal Investigator

MURAKAMI Kenji  National Maritime Research Institute, Structure and Materials Department, Group Leader (60112067)

Co-Investigator(Kenkyū-buntansha) SENDA Tetsuya  National Maritime Research Institute, Energy and Environment Assessment Department, Director (80344240)
UEMATSU Susumu  National Maritime Research Institute, Structure and Materials Department, Senior Researcher (10344235)
TAKAHASHI Chiori  National Maritime Research Institute, Energy and Environment Assessment Department, Group Leader (40399530)
Project Period (FY) 2005 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥15,780,000 (Direct Cost: ¥15,300,000、Indirect Cost: ¥480,000)
Fiscal Year 2007: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2006: ¥7,300,000 (Direct Cost: ¥7,300,000)
Fiscal Year 2005: ¥6,400,000 (Direct Cost: ¥6,400,000)
Keywordscorrosion protection / antifouling / aluminum-copper thermal spray coating / aluminum-zinc thermal spray coating / steel substrate / biofouling / corrosion products / under-coat / 溶射コーティング / アルミニウムー銅 / アルミニウムー亜鉛 / 海中浸漬 / 断面分析 / アルミニウム-鋼合金 / 急速凝固 / 構造 / 密着性 / 電気化学的特性 / アルミニウム / 銅 / 強制固溶体 / 微細構造
Research Abstract

For the purpose of development of thermal spray coatings with both corrosion protection and antifouling properties, aluminum-copper coatings, aluminum-zinc coating and zinc coatings are sprayed onto a steel substrate and are immersed in the sea. Some of the substrates are treated with an aluminum under-coat prior to the spraying of the above-mentioned coatings(top-coats). While barnacles adhered to the aluminum-copper alloy coatings of copper content lower than 20 mass% and to the aluminum-copper blend coatings of the copper content lower than 40 mass%, rusting of the steel substrates occurred in the case of the coatings of higher copper content. The zinc coatings and aluminum-zinc coatings containing more than 50 mass% zinc possess both corrosion protection and antifouling characteristics. It was found that the application of the aluminum under-coat promotes the corrosion of the top-coats themselves. In this case, the corrosion started on or near the top-coat/under-coat boundary or the under-coat/substrate boundary. The corrosion product(s) lift the top-coats and are also accumulated on the top-coats.

Report

(4 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (6 results)

All 2009 2008

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (3 results)

  • [Journal Article] アルミニウム系溶射皮膜の防食・防汚特性2009

    • Author(s)
      村上 健児, 他
    • Journal Title

      溶射 46(掲載確定)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Corrosion Protection and Antifouling Properties of Aluminum BaseThermal Spray Coatings2009

    • Author(s)
      K. Murakami, et. al.
    • Journal Title

      to biesubmitted to Yosha Vol.46

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] アルミニウム系溶射皮膜の防食・防汚特性(投稿予定)2009

    • Author(s)
      村上 健児, 他
    • Journal Title

      溶射 46

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] アルミニウム系溶射皮膜の防食・防汚特性2008

    • Author(s)
      村上健児、他
    • Organizer
      日本溶射協会
    • Place of Presentation
      北九州市 (発表確定)
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Corrosion Protection and Antifouling Properties of Aluminum Base Thermal Spray Coatings2008

    • Author(s)
      K. Murakami, et. al.
    • Organizer
      to be presented in the Fall Meeting of Japan Thermal Spraying Society
    • Place of Presentation
      Kitakyushu, Japan
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] アルミニウム系溶射皮膜の防食・防汚特性(発表予定)2008

    • Author(s)
      村上 健児, 他
    • Organizer
      日本溶射協会
    • Place of Presentation
      北九州市
    • Related Report
      2007 Annual Research Report

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Published: 2005-04-01   Modified: 2016-04-21  

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