Tribocorrosion characteristics of CrMoSiCN/Ag coatings on Ti6Al4V alloys in seawater

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

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Author(s)

  • Maoda Zhang
  • Fei Zhou
  • Qianzhi Wang
  • Yongqiang Fu
  • Zhifeng Zhou

Detail(s)

Original languageEnglish
Pages (from-to)31780-31797
Journal / PublicationCeramics International
Volume47
Issue number22
Online published8 Aug 2021
Publication statusPublished - 15 Nov 2021

Abstract

CrMoSiCN/Ag coatings were deposited on Ti6Al4V alloys at the trimethylsilane flow of 15 sccm using closed-field unbalanced magnetron sputtering, and their microstructures were observed and analyzed using SEM, XRD, XPS and TEM, respectively. The coatings’ mechanical properties were measured using nano-indenter. The tribocorrosion characteristics of Ti6Al4V and CrMoSiCN/Ag coatings were investigated in seawater using tribocorrosion tester. The results revealed that the nanocomposite coatings consisted of (Cr, Mo)N solid solution, Ag nanocrystal and amorphous SiCNx matrix. As the Ag target current increased to 1.0 A, a large amount of Ag nanoparticles were observed on the coating surface. The coating hardness initially increased to 21.0 ± 0.7 GPa at the Ag target current of 0.4 A and then declined. After the Ag element was added into coatings, their tribocorrosion characteristics were improved. The tribocorrosion characteristics of coatings were much better than those of Ti6Al4V. The tribocorrosion characteristics of CrMoSiCN/Ag coating at the Ag target current of 1.0 A were the best in seawater.

Research Area(s)

  • Ag target current, CrMoSiCN/Ag coating, Seawater, Structure, Tribocorrosion

Citation Format(s)

Tribocorrosion characteristics of CrMoSiCN/Ag coatings on Ti6Al4V alloys in seawater. / Zhang, Maoda; Zhou, Fei; Wang, Qianzhi; Fu, Yongqiang; Zhou, Zhifeng.

In: Ceramics International, Vol. 47, No. 22, 15.11.2021, p. 31780-31797.

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