Influence of carbon content on the microstructure and tribological properties of TiN(C) coatings in water lubrication

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Qianzhi Wang
  • Fei Zhou
  • Zhifeng Zhou
  • Yang Yang
  • Ce Yan
  • Chundong Wang
  • Igor Bello
  • Shui-Tong Lee

Detail(s)

Original languageEnglish
Pages (from-to)3777-3787
Journal / PublicationSurface and Coatings Technology
Volume206
Issue number18
Publication statusPublished - 15 May 2012

Abstract

TiN(C) coatings with different carbon content were deposited on Si(100) wafers and 316L stainless steel disks using unbalance magnetron sputtering (UMS) from Ti and C targets in a mixture of N 2 and Ar gases. The microstructure and phase of TiN(C) coatings were observed and analyzed using field emission scanning electron microscope (FE-SEM) and X-ray diffraction (XRD), and the bonding structures of TiN(C) coatings were analyzed using Raman spectroscopy, X-ray photoelectron spectroscopy (XPS). The friction and wear properties of TiN(C) coatings sliding against SiC balls in water were investigated using ball-on-disk tribometer, and the wear tracks of the TiN(C) coatings were observed using 3D-profilometer and FE-SEM. The results showed that the orientation of TiN (111) changed to TiN(100) with an increase in the C target current while the peak of TiC(400) was observed at the C target current beyond 2A. When the C target current varied in the range of 1-3A, the TiC, Ti(C,N),CN bonds were observed, whereas the DLC-rich area with CC bonds was detected as the C target current higher than 2A. The hardness of TiN(C) coatings first increased to 32GPa at the C target current of 1A, and then decreased gradually with further increment in the C target current. The lowest friction coefficient of 0.24 and the lowest specific wear rate of 3.3×10 -6mm 3/Nm were obtained simultaneously as the TiN(C) coatings were deposited at the C target current of 3A. © 2012 Elsevier B.V.

Research Area(s)

  • Hardness, Microstructures, TiN(C) coatings, Tribological properties, Water lubrication

Citation Format(s)

Influence of carbon content on the microstructure and tribological properties of TiN(C) coatings in water lubrication. / Wang, Qianzhi; Zhou, Fei; Zhou, Zhifeng; Yang, Yang; Yan, Ce; Wang, Chundong; Zhang, Wenjun; Li, Lawrence Kwok-Yan; Bello, Igor; Lee, Shui-Tong.

In: Surface and Coatings Technology, Vol. 206, No. 18, 15.05.2012, p. 3777-3787.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review