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Study on Environmental and Degraded Evaluation of Industrial Materials under Sub-Tropical Oceanic Climate

Research Project

Project/Area Number 10650712
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Material processing/treatments
Research InstitutionUniversity of the Ryukyus

Principal Investigator

YARA Hideo  University of the Ryukyus, Faculty of Engineering, Professor, 工学部, 教授 (60045028)

Co-Investigator(Kenkyū-buntansha) KUNIYOSHI Kazuo  Okinawa Industrial Technology Center, Chief Diector, 研究開発部, 部長
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,900,000)
Fiscal Year 1999: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1998: ¥2,100,000 (Direct Cost: ¥2,100,000)
KeywordsSub-tropical oceanic climate / Environment evaluation / degraded evaluation / Exposure test / Industrial material / 大気腐食 / 海塩粒子量
Research Abstract

In this study, environmental and degraded evaluation of industrial materials under sub-tropical oceanic climate were investigated. Mainly places of exposure test has been done in Choshi City in Chiba Prefecture, Miyako Island in Ueno Village and Nishihara in Engineering Faculty's Campus of Ryukyu University. Used materials are Carbon steel, anti-weathering steel, Al alloy, copper, Zn and stainless steel.
In 7 years exposure test, the results of corrosion degree are as follows:
(1) Miyako>Choshi=Nishihara used carbon steel
(2) Miyako>Choshi>Nishihara used Al alloy
(3) Miyako>Nishihara>Choshi used Cu, Zn and stainless steel
Especially for carbon steel, the corrosion in Miyako is the most serious. That is effected by various environmental factors. The continuity to the future, the relation between corrosion degree and environmental factors will need research.

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] 屋良秀夫: "塗布式粗面形成法による溶射皮膜の特性"高温学会誌. 第25巻. 268-272 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Hideo YARA: "Characteristics of Themal Spray Coating with Paint Type Forming Roughness Method"Journal of High Temperature Society. No.25. 268-272 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 屋良秀夫: "塗布式粗面形成法による溶射皮膜の特性"高温学会誌. 第25巻. 268-272 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 屋良秀夫 他4名: "ノンブラスト前処理による溶射皮膜の特性(第2報)" 溶接学会全国大会講演概要. 第63集. 68-69 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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