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2002 Fiscal Year Final Research Report Summary

Evaluation of tribological properties of nano-multilayered thin hard coatings by a slurry jet impact test and its application

Research Project

Project/Area Number 13650149
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 InstitutionFukui University

Principal Investigator

IWAI Yoshiro  Fukui Univ., Mechanical Eng., Professor, 工学部, 教授 (40115291)

Co-Investigator(Kenkyū-buntansha) HONDA Tomomi  Fukui Univ., Mechanical Eng., Associate Professor, 工学部, 助教授 (80251982)
Project Period (FY) 2001 – 2002
KeywordsTribology / Wear test method / Evaluation / Slurry jet impact test / Wear property / PVD coating / Coated tool
Research Abstract

We proposed slurry jet, a new type of solid particle impact test, in order to quickly evaluate tribological properties of thin, single layered or multilayered hard coatings.
(1) By slurry jet 1 μm alumina particles were impacted at high velocity perpendicular to thin PVD coatings of TiN, CrN, TiCN, the coatings proved to have much higher wear resistance than the substrate material, and, consequently, the wear rate increased significantly to the higher level of the substrate material when the coatings were penetrated.
(2) By using a slurry jet impact test, fast and highly reproducible evaluation of wear properties of PVD coated drills can be made.
(3) The PVD coatings deposited on the drills showed the same wear resistance as those on the plate specimens used as reference samples.
(4) For the coatings included in this study, the TiN proved to have the highest wear resistance, whereas the CrN was the worst.
(5) The wear resistance of CrNi coatings decrease with increasing the concentration of Ni.
(6) The ranking of wear resistance for CrN (CrNi) coatings show good correlation to their micro hardness.
We conclude that the proposed evaluation test is fast and easy to accomplish. Thus, it can preferentially be used as a screening test when evaluating coatings and coated tools.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] Y.Iwai, T.Honda, H.Yamada, T.Matsubara, M.Larsson, S.Hogmark: "Evaluation of wear resistance of thin hard coatings by a new solid particle impact test"Wear. 251/1-12. 861-867 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Iwai: "Evaluation of the wear properties of PVD coatings by a slurry jet impact test"Proc. of The 2001 International Symposium of Advanced Engineering, 2001-10,Korea. 60-68 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Iwai, Y.Ueno, T.Suehiro, T.Honda, S.Hogmark: "Evaluation of the wear resistance of PVD coatings on drills by using slurry jet impact test"Proc. of The 2nd Asia International Conference on trilbology, 2001-10,Korea. 141-142 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Iwai, T.Honda, H.Yamada, T.Matsubara, M.Larsson, S.Hogmark: "Evaluation of wear resistance of thin hard coatings by a new solid particle impact test"Wear. 251/1-12. 861-867 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Iwai: "Evaluation of the wear properties of PVD coatings by a slurry jet impact test"Proc. Of The 2001 International Symposium of Advanced Engineering. 2001-10, Korea. 60-68

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Iwai, Y.Ueno, T.Suehiro, T.Honda, S.Hogmark: "Evaluation of the wear resistance of PVD coatings on drills by using a slurry jet impact test"Proc. Of The 2nd Asia International Conference on Tribology. 2002-10, Korea. 141-142

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2004-04-14  

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