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Elucidation of stress formation mechanism during deposition process of ceramic particles

Research Project

Project/Area Number 20K04172
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 18010:Mechanics of materials and materials-related
Research InstitutionIwate University

Principal Investigator

WAKI Hiroyuki  岩手大学, 理工学部, 教授 (30324825)

Co-Investigator(Kenkyū-buntansha) 足立 寛太  岩手大学, 理工学部, 助教 (50823879)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords機械材料・材料力学 / 構造・機能材料 / 遮熱コーティング / 残留応力 / 弾性係数
Outline of Research at the Start

セラミックス皮膜はガスタービンなどの高温部品で不可欠であり,プラズマ溶射で施工されている.プラズマジェットによりセラミックスを半溶融状態とし,下地に衝突させ皮膜が形成される.粒子積層過程中の試験片の共振周波数計測によって,積層中の皮膜の弾性係数履歴の評価を行う.次に,粒子積層過程中に試験片の曲率履歴の計測を行う.また,高精度な連続積層の曲率解析モデルを構築する.このように,弾性係数履歴と曲率履歴,および高精度な曲率解析モデルによって,皮膜の応力履歴の評価を行い,粒子積層過程中の応力発生機構の解明を目指す.

Outline of Final Research Achievements

Ceramic thermal sprayed coating is formed by sequential impact of semi-molten particles into the substrate with a plasma jet. In this study, we investigated the stress formation mechanism during the particle deposition process. Firstly, a stress analytical model, three-layer model with an intermediate layer, was constructed based on the curvature of the specimen. Secondly, by measuring the curvature history of the specimen during plasma spraying process, the deposition stress history during the particle deposition process was evaluated. Experimental studies under various process conditions clarified the transient state of the deposition stress, the relation between deposition stress and material properties, and the relation between deposition stress and the coating microstructure.

Academic Significance and Societal Importance of the Research Achievements

セラミックス皮膜はガスタービンなどの高温部品で不可欠であり,プラズマ溶射で施工されている.過酷的な粒子積層環境中において,セラミックス皮膜の応力履歴を正確に評価することが困難であり,残留応力の形成機構の解明が重要な課題となっている.本研究では粒子積層中の過渡的な堆積応力を実験的に評価し,応力形成機構を検討した貴重な結果である.特に,明らかにした堆積応力の物性依存や,堆積応力と皮膜組織との関連は,今後,応力制御セラミックス皮膜や組織制御セラミックス皮膜の開発に貢献するものである.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (8 results)

All 2022 2021 2020

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 5 results) Presentation (2 results)

  • [Journal Article] Evaluation of Residual Stress Distribution in Thermal Barrier Coating System by Extended Thin Layer-Removal Method for Three-Layered Model2022

    • Author(s)
      WATANEBE Masahiro、WAKI Hiroyuki、ADACHI Kanta
    • Journal Title

      Journal of the Society of Materials Science, Japan

      Volume: 71 Issue: 6 Pages: 524-531

    • DOI

      10.2472/jsms.71.524

    • ISSN
      0514-5163, 1880-7488
    • Year and Date
      2022-06-15
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation Method of High Temperature Nonlinear Constitutive Equation of Thermal Barrier Coating Based on in Situ Curvature Measurement during Thermal Cycling2022

    • Author(s)
      SHIBATA Ai、WAKI Hiroyuki、ADACHI Kanta
    • Journal Title

      Journal of the Society of Materials Science, Japan

      Volume: 71 Issue: 2 Pages: 189-196

    • DOI

      10.2472/jsms.71.189

    • NAID

      130008161740

    • ISSN
      0514-5163, 1880-7488
    • Year and Date
      2022-02-15
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation Method for Inelastic Constitutive Equation of Thermal Sprayed Ceramic Coating by Bending Strain of Coating System2021

    • Author(s)
      OKUBO Noriyuki、WAKI Hiroyuki、ADACHI Kanta
    • Journal Title

      Journal of the Society of Materials Science, Japan

      Volume: 70 Issue: 10 Pages: 758-765

    • DOI

      10.2472/jsms.70.758

    • NAID

      130008105916

    • ISSN
      0514-5163, 1880-7488
    • Year and Date
      2021-10-15
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of the Residual Stress Evolution in Thermal Barrier Coating System Using the In Situ Curvature of a Three-Layered Specimen2021

    • Author(s)
      Hayase Tomoyuki、Waki Hiroyuki、Adachi Kanta
    • Journal Title

      Journal of Thermal Spray Technology

      Volume: 30 Issue: 5 Pages: 1183-1198

    • DOI

      10.1007/s11666-021-01221-y

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evaluation Method of High Temperature Nonlinear Constitutive Equation of Top Coat Using Resonant Young’s Modulus of TBC System2021

    • Author(s)
      SATO Ryuta、WAKI Hiroyuki、ADACHI Kanta、KATO Masahiko、TAKAHASHI Satoru
    • Journal Title

      Journal of the Society of Materials Science, Japan

      Volume: 70 Issue: 11 Pages: 853-860

    • DOI

      10.2472/jsms.70.853

    • NAID

      130008118940

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Relationship between Interfacial and Coating Fracture Toughnesses of Thermal Barrier Coating2020

    • Author(s)
      TSUGE Tomoya、WAKI Hiroyuki、ADACHI Kanta、HOJO Tomohiko
    • Journal Title

      Journal of the Society of Materials Science, Japan

      Volume: 69 Issue: 12 Pages: 863-868

    • DOI

      10.2472/jsms.69.863

    • NAID

      130007958260

    • ISSN
      0514-5163, 1880-7488
    • Year and Date
      2020-12-15
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] プラズマ溶射中の曲率履歴計測による皮膜残留応力の成膜速度依存の検討2022

    • Author(s)
      藤井悠大,脇 裕之,足立寛太
    • Organizer
      日本材料学会第71期学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 三層モデルの逐次表面除去法による遮熱コーティングシステムの残留応力分布評価2021

    • Author(s)
      渡邉将洋,脇 裕之,足立寛太
    • Organizer
      日本材料学会第70期学術講演会
    • Related Report
      2021 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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