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Surface hardening treatment of light metal materials using active screen plasma nitriding

Research Project

Project/Area Number 24560896
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Material processing/treatments
Research InstitutionKansai University

Principal Investigator

NISHIMOTO Akio  関西大学, 化学生命工学部, 教授 (70330173)

Research Collaborator MATSUKAWA Tatsuya  関西大学大学院, 理工学研究科
NAKAZAWA Kunishige  関西大学大学院, 理工学研究科
KIZAWA Yoshitaka  関西大学大学院, 理工学研究科
TANAKA Toshiya  関西大学大学院, 理工学研究科
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords表面改質 / プラズマ窒化 / アクティブスクリーン / 軽金属 / チタン合金 / 表面熱処理 / 窒化
Outline of Final Research Achievements

Ti-6Al-4V alloy was active screen plasma nitrided using a double titanium screen under various process conditions. The ASPN process variables included treatment temperature (873 K), treatment time (1, 5 and 25 h) and gas mixture (75/25 of N2/H2) under 200 Pa pressure. Cross-sectional microstructure and GDOES results demonstrated that a Ti nitride compound layer consisting of TiN followed by Ti2N was formed on top of the surface. The surface hardness of the nitrided sample showed 1300 HV. Friction wear test results indicated that the friction resistance of the ASPN treated sample for 25 h improved considerably compared with the untreated sample.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (4 results)

All 2014 Other

All Presentation (4 results)

  • [Presentation] チタン合金のアクティブスクリーンプラズマ窒化2014

    • Author(s)
      木澤吉貴, 中澤邦成, 西本明生
    • Organizer
      軽金属学会関西支部 若手研究者・院生による研究発表会
    • Place of Presentation
      関西大学
    • Year and Date
      2014-12-26
    • Related Report
      2014 Annual Research Report
  • [Presentation] Effect of Surface Deposits from Screen on Active Screen Plasma Nitriding2014

    • Author(s)
      Akio NISHIMOTO, Tatsuya MATSUKAWA, Toshiya TANAKA
    • Organizer
      14th International Conference on Plasma Surface Engineering
    • Place of Presentation
      Garmisch-Partenkirchen, Germany
    • Year and Date
      2014-09-15
    • Related Report
      2014 Annual Research Report
  • [Presentation] チタンダブルスクリーンを用いたアクティブスクリーンプラズマ窒化におけるN2/H2ガス比の影響

    • Author(s)
      中澤邦成, 松川竜也, 西本明生
    • Organizer
      第75回(平成25年春季)日本熱処理技術協会講演大会
    • Place of Presentation
      東京工業大(東京都)
    • Related Report
      2013 Research-status Report
  • [Presentation] 異材スクリーンを用いたアクティブスクリーンプラズマ窒化におけるN2/H2ガス比の影響

    • Author(s)
      西本明生, 中澤邦成, 松川竜也
    • Organizer
      日本金属学会2013年秋期(第153回)講演大会
    • Place of Presentation
      金沢大(石川県)
    • Related Report
      2013 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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