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Formation of high-temperature oxidation-resistant surface-modification layer applied to Nb-based alloy and the Construction of Phase Diagrams

Research Project

Project/Area Number 17K06865
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Material processing/Microstructural control engineering
Research InstitutionHokkaido University of Science

Principal Investigator

Saito Shigeru  北海道科学大学, 工学部, 教授 (30382477)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2017: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Keywords表面改質層 / 熱サイクル酸化 / 合金状態図 / 自己形成 / 組成経路 / 合金相 / 層構造 / 熱処理 / タイライン / ニオブ基合金
Outline of Final Research Achievements

In this study, we formed the surface modification layers consisting of a multilayered structure on the heat-resistant alloys, and performed a thermal cycle oxidation test (1100 ℃: 45 min ⇔ room temperature: 15 min, in air). The thermal cycle oxidation properties and oxidation resistance of the coating during thermal cycle oxidation and the changes in the structure and layer structure were investigated. The coated specimen exhibited excellent thermal cycle and oxidation resistance characteristics. These changes in the layer structure could be effectively represented by composition paths in phase diagrams.

Academic Significance and Societal Importance of the Research Achievements

本研究で提案する表面改質層とは、耐熱合金上に施したコーティング層が熱サイクル酸化試験中に層構造が変化するが、層構造の変化とともに各元素の相互拡散抑制とアルミナ保護皮膜の形成・維持を両立した、“自己形成コーティング”のことをいう。本研究では拡散浸透処理と熱処理を組合せた低コストで簡易的なコーティングプロセスを採用し、表面改質層の形成させた。耐熱合金と表面改質層、さらにアルミナ保護皮膜はいずれも異相であるため、これらの組合せや形成過程を合金状態図上に組成経路として記述し、表面改質層の構造変化を明確に表現することができた。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (9 results)

All 2019 2018 2017 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (4 results) Remarks (2 results)

  • [Journal Article] Formation of a Diffusion Barrier Coating on Ni-Based Alloy and Thermal Cycle Oxidation Property2019

    • Author(s)
      Saito Shigeru、Hayashi Shigenari、Narita Takuro、Kato Yasumichi、Ohtsuka Motohiro、Ara Mayumi、Narita Toshio
    • Journal Title

      Journal of the Japan Institute of Metals and Materials

      Volume: 83 Issue: 10 Pages: 372-377

    • DOI

      10.2320/jinstmet.JAW201906

    • NAID

      130007711144

    • ISSN
      0021-4876, 1880-6880, 2433-7501
    • Year and Date
      2019-10-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Investigation of the Cross-Sectional Structure and Isothermal Section at 1150°C of a Nb–Re–Si Alloy Fabricated Using a Tetra-Arc Furnace2019

    • Author(s)
      Saito Shigeru、Takashima Toshiyuki、Horiuchi Toshiaki、Miura Seiji、Narita Toshio
    • Journal Title

      MATERIALS TRANSACTIONS

      Volume: 60 Issue: 4 Pages: 611-615

    • DOI

      10.2320/matertrans.M2018396

    • NAID

      130007618564

    • ISSN
      1345-9678, 1347-5320
    • Year and Date
      2019-04-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Investigation of the Cross-Sectional Structure and Isothermal Section at 1150°C of a Nb-Re-Si Alloy Fabricated Using a Tetra-Arc Furnace2018

    • Author(s)
      齋藤繁,高島敏行,堀内寿晃,三浦誠司,成田敏夫
    • Journal Title

      Journal of the Japan Institute of Metals and Materials

      Volume: 82 Issue: 11 Pages: 409-414

    • DOI

      10.2320/jinstmet.JAW201808

    • NAID

      130007500793

    • ISSN
      0021-4876, 1880-6880, 2433-7501
    • Year and Date
      2018-11-01
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ハステロイ-X合金への拡散バリアコーティング形成と熱サイクル酸化特性2019

    • Author(s)
      齋藤繁,林重成,大塚元博,成田拓郎,加藤泰道,成田敏夫
    • Organizer
      日本金属学会
    • Related Report
      2018 Research-status Report
  • [Presentation] テトラアーク式引上装置を用いて作製したNb-45at%Re-40at%Si合金の断面組織観察と1150℃における等温状態図の検討2019

    • Author(s)
      鬼塚祐樹,齋藤繁,堀内寿晃,見山克己,三浦誠司,成田敏夫
    • Organizer
      日本金属学会
    • Related Report
      2018 Research-status Report
  • [Presentation] テトラアーク式引上炉を用いて作製したNb-Re-Si合金の断面組織観察と1150℃における各相の共役組成2018

    • Author(s)
      鬼塚祐樹,齋藤繁,堀内寿晃,見山克己,三浦誠司,成田敏夫
    • Organizer
      日本金属学会
    • Related Report
      2018 Research-status Report
  • [Presentation] テトラアーク引上炉を用いて作製したNb-Re-Si合金の断面組織と1150℃における等温断面図の検討2017

    • Author(s)
      齋藤繁,堀内寿晃,高島敏行,三浦誠司,成田敏夫
    • Organizer
      日本金属学会
    • Related Report
      2017 Research-status Report
  • [Remarks] 北海道科学大学工学部機械工学科材料システム研究室ホームページ

    • URL

      https://www1.hus.ac.jp/~zairyo-system/

    • Related Report
      2019 Annual Research Report 2018 Research-status Report 2017 Research-status Report
  • [Remarks] 北海道科学大学研究者データベース

    • URL

      https://labs.hus.ac.jp/

    • Related Report
      2019 Annual Research Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

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