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Surface hardening and strength evaluation of multi-functional fine protrusions formed by sputter-etching

Research Project

Project/Area Number 24560117
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Materials/Mechanics of materials
Research InstitutionHiroshima Kokusai Gakuin University

Principal Investigator

KEIJIRO Nakasa  広島国際学院大学, 工学部, 研究員 (80034370)

Co-Investigator(Renkei-kenkyūsha) WANG Rongguang  広島工業大学, 工学部, 教授 (30363021)
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2014: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsスパッタエッチング / 微細突起物 / 表面硬化 / 強度評価
Outline of Final Research Achievements

In order to increase the strength of multi-functional fine protrusions formed by sputter-etching of steels, surface modifications were carried out. Quenching or plasma-nitriding of the protrusions increased indentation and scratch resistances of protrusions to almost twice larger values than those of the as-sputter-etched protrusions. The indentation of nitrided protrusions to plastic plates produced many holes without deformation of tips of protrusions whereas the tips of as-sputter-etched protrusions were deformed under both static and repeated indentation. These results mean that the surface with plasma-nitrided protrusions is applicable to a roll to transport soft materials with large gripping force or to a roll to transcript many holes on the plastic plates to decrease light reflection and to increase adhesion of paint. Sputter coating of SiC film on the protrusion substrate facilitated the delamination of a plastic film molded in the protrusions.

Report

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

    (7 results)

All 2015 2014 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results) Presentation (2 results) Remarks (3 results)

  • [Journal Article] Effect of plasma nitriding on the strength of fine protrusions formed by sputter etching of AISI type 420 stainless steel2015

    • Author(s)
      Keijiro Nakasa, Akihiro Yamamaoto, Rongguang Wang, Tsunetaka Sumomogi
    • Journal Title

      Surface and Coatings Technology

      Volume: 272 Pages: 298-308

    • DOI

      10.1016/j.surfcoat.2015.03.048

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Formation of Fine Protrusions by Sputter Etching of Martensitic Stainless Steels2014

    • Author(s)
      中佐啓治郎、山本旭宏、王栄光、李木経孝
    • Journal Title

      Tetsu-to-Hagane

      Volume: 100 Issue: 5 Pages: 647-655

    • DOI

      10.2355/tetsutohagane.100.647

    • NAID

      130004747769

    • ISSN
      0021-1575, 1883-2954
    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] ステンレス鋼のスパッタエッチングによって形成された微細突起物の強度に及ぼすプラズマ窒化の影響2014

    • Author(s)
      中佐啓治郎,山本旭宏,王 栄光,李木経孝
    • Organizer
      日本金属学会・日本鉄鋼協会中国四国支部講演大会
    • Place of Presentation
      徳島大学工学部(徳島県徳島市南常三島町)
    • Year and Date
      2014-08-21 – 2014-08-22
    • Related Report
      2014 Annual Research Report
  • [Presentation] スパッタエッチングによるマルテンサイト系およびフェライト系ステンレス鋼の微細突起物形成挙動

    • Author(s)
      中佐啓治郎、山本旭宏、王栄光、李木経孝
    • Organizer
      日本鉄鋼協会・日本金属学会中国四国支部
    • Place of Presentation
      愛媛大学工学部(愛媛県松山市)
    • Related Report
      2013 Research-status Report
  • [Remarks] 中佐啓治郎のホームページ

    • URL

      http://www006.upp.so-net.ne.jp/nakasa/

    • Related Report
      2014 Annual Research Report
  • [Remarks] 中佐啓治郎(広島国際学院大学)のホームページ

    • URL

      http://www006.upp.so-net.ne.jp/nakasa/

    • Related Report
      2013 Research-status Report
  • [Remarks] 中佐啓治郎(広島国際学院大学 )のホームページ

    • URL

      http://www006.upp.so-net.ne.jp/nakasa/

    • Related Report
      2012 Research-status Report

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

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