Microstructure and wear performance of gradient Ti/TiN metal matrix composite coating synthesized using a gas nitriding technology

Z. D. Cui, S. L. Zhu, Hau Chung Man, X. J. Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

78 Citations (Scopus)


Surface modification is an attractive method to enhance the surface hardness and wear resistance of titanium. In this paper, a continuous wave 2 kW Nd:YAG laser was used to synthesize Ti/TiN metal matrix composite coating on the surface of commercial pure titanium. The microstructure and the wear resistance of the synthesized metal matrix composite coating were investigated. The synthesized surface Ti/TiN metal matrix composite coating had a pronounced gradient microstructure through the melt depth. Good metallurgical bonding between the reinforcing phase of the metal matrix composite and the titanium matrix was observed. The hardness and wear resistance under block-on-ring dry sliding wear testing conditions of the synthesized Ti/TiN metal matrix composite coating were markedly enhanced.
Original languageEnglish
Pages (from-to)309-313
Number of pages5
JournalSurface and Coatings Technology
Issue number2-3
Publication statusPublished - 21 Jan 2005


  • Laser gas nitriding
  • Metal matrix composite coating
  • Titanium
  • Titanium nitride
  • Wear resistance

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces

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