• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Tribological properties of ultra-fine grained materials produced by surface severe plastic deformation

Research Project

Project/Area Number 19K04160
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 18040:Machine elements and tribology-related
Research InstitutionFukui National College of Technology

Principal Investigator

Kato Hirotaka  福井工業高等専門学校, 機械工学科, 教授 (30311020)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordsトライボロジー / 超強加工 / 滑りバニシング / 微細結晶粒材料 / 耐摩耗性 / 表面超強加工 / 結晶粒微細化 / ナノ組織 / 表面性状 / 巨大ひずみ加工
Outline of Research at the Start

極めて大きな塑性ひずみを与える超強加工により作製可能となったナノ/サブミクロン微細結晶粒材料は、合金元素に頼らずに高強度であるため次世代の構造材料として注目されている。とくに摩擦の影響を受けた材料表面には、ひずみ勾配をもつ巨大塑性ひずみによりナノ組織が形成され、摩擦加工は表面を対象にした超強加工の一種である。したがって、工具を材料表面に押し付けながら相対運動を与える摩擦加工(滑りバニシング)を行えば、材料表面が超微細化・ナノ組織化して硬度が上昇し耐摩耗性が飛躍的に向上すると考えられる。そこで、最適な加工条件を見出し摩擦摩耗特性に優れた加工表層を開発し、トライボロジー分野への応用を目指す。

Outline of Final Research Achievements

Sliding burnishing process is a surface severe plastic deformation technique, in which the surface of the workpiece is subject to compressing and rubbing by the application of a ball as a tool. This process provides many advantages; burnishing generates a smooth surface by plastic deformation of surface irregularities without removal of material from the surface, and increases the surface hardness of the workpiece due to the microstructural evolution such as grain refinement, which in turn improves the wear resistance.
In the present study, the effects of burnishing process parameters such as force and speed on the surface roughness, microstructure and hardness of carbon steel were investigated. Also the present work was carried out to investigate effects of initial turned surface roughness on the burnished surface roughness and hardness. In addition the sliding wear properties of the burnished surface layers were studied using a ball-on-disk friction method.

Academic Significance and Societal Importance of the Research Achievements

極めて大きな塑性ひずみを与える超強加工により作製可能となったナノ/サブミクロン微細結晶粒材料は、合金元素に頼らずに高強度であるため次世代の構造材料として注目されている。とくに本研究で提案した滑りバニシングは、材料表面が超微細化・ナノ組織化して硬度が上昇し、耐摩耗性が飛躍的に向上する。したがって、本研究で得られた、平滑化と高硬度化の両方を満足する最適な加工条件や加工前の表面性状が及ぼす影響に関する知見、さらにはその加工面の優れた摩擦摩耗特性に関する研究成果は、微細組織構造材料をトライボロジー分野に応用展開する上で大きな意義がある。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (10 results)

All 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results) Book (2 results)

  • [Journal Article] Improvement in Surface Roughness and Hardness for Carbon Steel by Slide Burnishing Process2021

    • Author(s)
      Kato Hirotaka、Hirokawa Wataru、Todaka Yoshikazu、Yasunaga Kazufumi
    • Journal Title

      Materials Sciences and Applications

      Volume: 12 Issue: 05 Pages: 171-181

    • DOI

      10.4236/msa.2021.125011

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Wear and Adhesion Properties of High-Pressure Torsion Processed Carbon Steel2020

    • Author(s)
      Kato Hirotaka、Yamashita Kouhei、Todaka Yoshikazu
    • Journal Title

      Key Engineering Materials

      Volume: 846 Pages: 157-161

    • DOI

      10.4028/www.scientific.net/kem.846.157

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Nano-Crystallization of Steel Surface by Slide-Burnishing2020

    • Author(s)
      Kato Hirotaka、Yamamoto Keitaro、Yasunaga Kazufumi
    • Journal Title

      Key Engineering Materials

      Volume: 841 Pages: 48-53

    • DOI

      10.4028/www.scientific.net/kem.841.48

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Wear and Adhesion Properties of High-pressure Torsion Processed2020

    • Author(s)
      H. Kato, K. Yamashita and Y. Todaka
    • Journal Title

      Key Engineering Materials

      Volume: 846 Pages: 157-161

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Wear and Adhesion Properties of Ultra-Fine Grained Metals Produced by Severe Plastic Deformation2019

    • Author(s)
      H. Kato and Y. Todaka
    • Organizer
      International Tribology Conference Sendai 2019 (ITC Sendai 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Wear and Adhesion Properties of High-pressure Torsion Processed Carbon Steel2019

    • Author(s)
      H. Kato, K. Yamashita and Y. Todaka
    • Organizer
      2019 8th International Conference on Engineering and Innovative Materials (ICEIM 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Nano-Crystallization of Steel Surface by Slide-Burnishing2019

    • Author(s)
      H. Kato, K. Yamamoto and K. Yasunaga
    • Organizer
      The 4th International Conference on Material Engineering and Application (4th ICMEA 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 微細組織材料の摩耗特性2019

    • Author(s)
      加藤寛敬
    • Organizer
      広島市産業振興センター省エネルギー材料研究会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Book] トライボロジーの評価制御応用展開 第10章 微細組織材料のトライボロジー特性2021

    • Author(s)
      加藤寛敬(監修:岩井善郎、新田勇)
    • Total Pages
      319
    • Publisher
      シーエムシー出版
    • ISBN
      9784781315911
    • Related Report
      2021 Annual Research Report
  • [Book] トライボロジーの評価制御応用展開 微細組織材料のトライボロジー特性2021

    • Author(s)
      加藤寛敬(監修:岩井善郎、新田勇)
    • Total Pages
      7
    • Publisher
      シーエムシー出版
    • ISBN
      9784781315911
    • Related Report
      2020 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi