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Evaluation of delamination strength and thermal conductivity of porous thermal barrier coating for super high temperature gas turbine in the next generation

Research Project

Project/Area Number 15K05692
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Materials/Mechanics of materials
Research InstitutionTokyo University of Science

Principal Investigator

Kaneko Kenji  東京理科大学, 工学部機械工学科, 教授 (40016803)

Co-Investigator(Kenkyū-buntansha) 荒井 正行  東京理科大学, 工学部機械工学科, 教授 (40371314)
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords遮熱被膜 / 疲労せん断剥離 / 剥離強度基準 / 空孔率依存性 / 熱伝導率 / 熱負荷依存性 / 応力場の強さ / S-Nせん断疲労曲線 / 遮熱被膜, / 剥離強度基準、 / せん断剥離、 / 空孔率依存性、 / せん断剥離 / 被膜強度 / 熱伝導特性 / 剥離基準
Outline of Final Research Achievements

In this study, shear fatigue delamination strength and thermal conductivity of porous thermal barrier coatings (TBC’s) were investigated experimentally and analytically, using the torsion pin-test method and the finite element method (FEM) analysis. First, elastic deformation properties of the porous TBC’s were determined by the spherical indentation method with the corresponding FEM analysis. Second, critical shearing delamination torques were determined by the simple torsion pin-test method for 4 kinds of the porous TBC’s and the critical strength of the shear stress singularity around the interfacial edge was decided as the general delamination strength standard. Third, fatigue shearing delamination strength (S-N curves) was obtained for three kinds of the porous TBC’s by the cyclic torsion pin-test method and then S-N curves of the porous TBC’s of an arbitral porosity were determined.

Academic Significance and Societal Importance of the Research Achievements

本研究成果の学術的かつ社会的な意義は以下の通りである。(1)溶射被膜のせん断剥離強度を疲労強度の面においても実験的かつ解析的に明確に求めることを可能にするねじりピンテスト法の有用性を確認したもので、学術研究上の意義は大きい。(2)ガスタービンの性能向上のためにポーラスな遮熱被膜を実機タービン翼に適用する際の強度と安全性の確認のために必要な被膜の疲労剥離強度曲線を任意の気孔率被膜に対して求め、決定した点。(3)ポーラスな遮熱被膜を適用することでガスタービン等の性能向上を図ることはエネルギーの効率的な利用と資源の節約あるいは地球環境の保護・保全等に資する社会的にも極めて意義のある成果である。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (11 results)

All 2019 2018 2017 2015

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 3 results,  Acknowledgement Compliant: 2 results) Presentation (6 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Evaluation of deformation properties of porous thermal barrier coatings by indentation method2018

    • Author(s)
      Kenji Kaneko
    • Journal Title

      Transactions of the JSME (in Japanese)

      Volume: 84 Issue: 863 Pages: 18-00147-18-00147

    • DOI

      10.1299/transjsme.18-00147

    • NAID

      130007419183

    • ISSN
      2187-9761
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comprehensive Numerical Simulation of Stress and Damage Fields under Thermo-Mechanical Loading for TBC-Coated Ni-Based Superalloy2018

    • Author(s)
      H. Katori, M. Arai, K. Ito
    • Journal Title

      Key Engineering Materials

      Volume: 774 Pages: 137-142

    • DOI

      10.4028/www.scientific.net/kem.774.137

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Interfacial Elastic J Integral for Indentation Test2018

    • Author(s)
      M. Arai
    • Journal Title

      Mechanical Engineering Journal

      Volume: 5 Issue: 6 Pages: 1-14

    • DOI

      10.1299/mej.18-00360

    • NAID

      130007531304

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of the Shearing Strength of a WC-12Co Thermal Spray Coating by the Scraping Test Method,2015

    • Author(s)
      Kenji Kaneko
    • Journal Title

      Coatings

      Volume: 5 Issue: 3 Pages: 278-292

    • DOI

      10.3390/coatings5030278

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Evaluation of Shear Delamination Strength of Thermal Barrier Coating After Heating by Torsion Pin-Test Method2015

    • Author(s)
      Kenji Kaneko
    • Journal Title

      Engineering Fracture Mechanics

      Volume: 148 Pages: 192-202

    • DOI

      10.1016/j.engfracmech.2015.09.004

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 多孔質遮熱被膜の疲労せん断剥離強度評価2019

    • Author(s)
      金子堅司、荒井正行
    • Organizer
      日本機械学会2019年次大会講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 押し込み試験による多孔質遮熱被膜の変形特性評価2018

    • Author(s)
      金子堅司、荒井正行
    • Organizer
      日本機械学会2018年次大会講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 熱疲労条件下でのセラミック遮熱コーティングの疲労き裂進展シミュレーション2018

    • Author(s)
      香取,荒井,伊藤
    • Organizer
      日本機械学会 2018年度 年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Developement of Thermal Barrier Coating with High Oxidation Resistance by Grit Blasting2018

    • Author(s)
      K. Itoh, T. Shima, M. Arai, T. Suidzu, A. Kanno
    • Organizer
      The International Conference on Surfaces, Coating and Interfaces
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Comprehensive Numerical Simulation of Stress and Damage Fields under Thermo-Mechanical Loading for TBC-coated Ni-based Superalloy2018

    • Author(s)
      H. Katori, M. Arai, K. Ito
    • Organizer
      17th International Conference on Fracture and Damage Mechanics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 多孔質遮熱被膜の弾塑性変形特性2017

    • Author(s)
      金子堅司
    • Organizer
      日本機械学会材料力学講演会
    • Related Report
      2017 Research-status Report

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Published: 2015-04-16   Modified: 2020-03-30  

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