The effect of cn coatings doped with niobium, titanium and zirconium metal on mechanical, tribological and corrosion resistance properties of thin films

Yen Liang Su, Wen Hsien Kao, Yu Chien Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

CN-Nb, CN-Ti and CN-Zr that are respectively doped with Nb, Ti and Zr metal in a CN coating are deposited on SKH51 substrate using DC unbalanced magnetron sputtering (DC-UBM). The coatings’ chemical characterization, morphology, mechanical, tribological and corrosion properties are determined. The XRD analysis shows when a low content of metal is added, the coatings exhibit DLC structures. Result from the incorporation of metals, coatings performed denser texture. Simultaneously, the surface became smoother and denser while surface roughness varied from 0.036 to about 0.020 µm. Various properties are improved over CN coating, CN-Ti has a 64% greater hardness at 21.9 Gpa and adhesion 26% better, with a critical load of 87 N. The elastic recovery ranges from 68% (CN) to 100% (CN-Nb and CN-Zr), the wear rate varies from 0.51 10-6 mm3/Nm (CN) to 0.1 10-6 mm3/Nm (CN-Zr) and the wear depth is reduced by about 73%. An increase in the elastic recovery gives a decreased wear rate. In addition, the corrosion resistance is increased because there is a decrease in the corrosion current density and the CN-Zr coating performed about 35 times better than a CN coating.

Original languageEnglish
Title of host publicationEngineering Tribology and Materials III
EditorsYunn Lin Hwang
PublisherTrans Tech Publications Ltd
Pages81-90
Number of pages10
ISBN (Print)9783035714623
DOIs
Publication statusPublished - 2019 Jan 1
Event4th International Conference on Engineering Tribology and Applied Technology, ICETAT 2018 - Taipei, Taiwan
Duration: 2018 Nov 162018 Nov 18

Publication series

NameKey Engineering Materials
Volume823 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

Conference4th International Conference on Engineering Tribology and Applied Technology, ICETAT 2018
CountryTaiwan
CityTaipei
Period18-11-1618-11-18

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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