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Research on High Performance Surface Modified Layer with Dispersed Fine Particles

Research Project

Project/Area Number14550126
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 設計工学・機械要素・トライボロジー
Research InstitutionOkayama University

Principal Investigator

FUJII Masahiro  OKAYAMA UNIVERSITY, FACULTY OF ENGINEERING, ASOCIATE PROFESSOR, 工学部, 助教授 (80209014)

Project Period (FY) 2002 – 2003
Project Status Completed(Fiscal Year 2003)
Budget Amount *help
¥3,500,000 (Direct Cost : ¥3,500,000)
Fiscal Year 2003 : ¥1,000,000 (Direct Cost : ¥1,000,000)
Fiscal Year 2002 : ¥2,500,000 (Direct Cost : ¥2,500,000)
KeywordsSurface Modification / Tribology / Dispersed Particle / Wear / Friction / Dispersed Precipitation / Spraying / FEM / 複合めっき / 溶射被膜 / FEM
Research Abstract

In order to improve the tribological performance of surface modified layer, dispersed particles, dispersed precipitations and ceramics particles spraying were investigated.
1. Roller and ring/disk tests were carried out under non-lubricating condition in high vacuum to investigate the tribological performance of particle dispersed composite platings. The influence of elastic modulus of dispersed particles on stresses was investigated with FEM analysis. The maximum values of Von Mises stress in the plated layer increased with increasing particle content and with decreasing elastic modulus of particles. The wear behavior obtained in the experiment could be well explained by the calculated stress field.
2. The rolling contact fatigue of a sprayed alumina ceramics was studied with a two-roller test apparatus with oil lubricant. The subsurface shear stresses were calculated with two-dimensional FEM analyses. The maximum values of orthogonal shear stress and maximum shear stress occurred withi … More n the sprayed layer. The depths of observed subsurface cracks were generally deeper than those of the maxima of shear stresses.
3. The friction and wear characteristics of stainless steel with dispersed precipitations were investigated with ring-on-disk test apparatuses under oil lubricating condition and non-lubricating condition in air and in vacuum. The friction and wear performances of stainless steel were improved by dispersed precipitations.
4. A gear test and a two-cylinder test were carried out under non-lubricating condition in high vacuum. In case of the Ni-P plated gear with dispersed PTFE particles, the wear was almost uniform along the tooth profile and the fluctuation of the dynamic load was small. Though the wear in the two-cylinder test was much smaller than that in the gear test, there is a good correlation of the average friction coefficients between the two tests.
These results were useful to design the optimum thickness and dispersed particles of surface modified layer. Less

Report

(3results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report

Research Products

(16results)

All Other

All Publications

  • [Publications] Akira Yoshida, Masahiro Fujii: "Influence of soft surface modification on rolling contact fatigue strength of machine element"Tribology International. 35・12. 837-847 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 藤井正浩, 吉田彰, 原野智哉, 大前勝禎: "高真空無潤滑下における無電解Ni合金めっき歯車の摩擦・摩耗"日本機械学会論文集(C編). 69・681. 1417-1424 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Masahiro Fujii, Akira Yoshida, Tomoki Harano: "Friction and Wear of Surface Modified Stainless Steel Gears and Rollers in High Vacuum"2003 ASME International Design Engineering Technical Conferences & Computers and Information in Engineering Conference. (CD-ROM). (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Akira Yoshida, Masahiro Fujii: "Influence of Soft Surface Modification on Rolling Contact Fatigue Strength of Machine Element"Tribology International. Vol.35,Issue12. 837-847 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Masahiro Fujii, Akira Yoshida, et al.: "Friction and Wear of Electroless Ni Alloy Plated Gear under Non-Lubricating Condition in High Vacuum"Transactions of the Japan Society of Mechanical Engineers. Vol.69,No.681. 1417-1424 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Masahiro Fujii, Akira Yoshida, Tomoki Harano: "Friction and Wear of Surface Modified Stainless Steel Gears and Rollers in High Vacuum"2003 ASME International Design Engineering Technical Conferences & Computers and Information in Engineering Conference. (CD-ROM). (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 藤井正浩, 吉田 彰, 原野智哉, 大前勝禎: "高真空無潤滑下における無電解Ni合金めっき歯車の摩擦・摩耗"日本機械学会論文集(C編). 69・681. 1417-1424 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Masahiro Fujii, Akira Yoshida, Tomoki Harano: "Friction and Wear of Surface Modified Stainless Steel Gears and Rollers in High Vacuum"2003 ASME International Design Engineering Technical Conferences & Computers and Information in Engineering Conference. (CD-ROM). DETC2003/PTG-48101 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 吉田 彰, 藤井正浩, 幸 賢司, 重村貞人, 谷 和美: "アルミナセラミックス溶射ローラの転がり疲れ"日本機械学会中国四国支部第41期総会・講演会講演論文集. 035-1. 283-284 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 藤井正浩, 吉田 彰, 織田英哲: "無電解Ni基合金めっきの油潤滑下における摩擦・摩耗"日本機械学会2003年度年次大会講演論文集. 03-1, Vol.IV. 127-128 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 藤井正浩, 吉田 彰, 重村貞人, 谷 和美, 幸 賢司: "セラミックス溶射鋼ローラの純転がり接触における転がり疲れ"日本トライボロジー学会トライボロジー会議新潟2003-11予稿集. 75-76 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 藤井正浩, 吉田 彰, 織田英哲: "耐摩耗性ステンレス鋼の摩擦・摩耗特性(油潤滑下および真空中の結果)"日本機械学会中国四国支部第42期総会・講演会講演論文集. 045-1. 413-414 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Akira Yoshida, Masahiro Fujii: "Influence of soft surface modification on rolling contact fatigue strength of machine element"Tribology International. 35-12. 837-847 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 藤井正浩, 吉田 彰: "粒子分散複合めっきの真空中トライボ性能"日本機械学会第2回機素潤滑設計部門講演会講演論文集. 02-12. 203-204 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 藤井正浩, 吉田 彰, 原野智哉: "ヘルツ接触下における表面改質層の応力分布"日本機械学会中国四国支部・九州支部合同企画松山地方講演会講演論文集. 025-2. 181-182 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 藤井正浩, 吉田 彰, 森田雅一: "無電解複合めっきローラの摩擦・摩耗に及ぼす分散粒子の影響"日本機械学会中国四国支部第41期総会・講演会講演論文集. 035-1. 285-286 (2003)

    • Related Report
      2002 Annual Research Report

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Published : 2002-04-01   Modified : 2016-04-21  

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