Microstructure and wear resistance of laser-melted TiC reinforced nickel aluminide dual-phase matrix in situ composite

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Abstract

A laser-melted TiC-reinforced nickel aluminide matrix in situ composite was fabricated. The composite consisted of well-developed TiC dendrites and a (NiAl-Ni3Al) dual-phase matrix. The microstructure of the laser-melted in situ composite was characterized by optical microscopy (OM), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). Results show that the TiC/(NiAl-Ni3Al) composite has excellent wear resistance for both room- and high-temperature sliding wear test conditions.

Original languageEnglish
Pages (from-to)325-331
Number of pages7
JournalIntermetallics
Volume14
Issue number3
DOIs
StatePublished - Mar 2006
Externally publishedYes

Keywords

  • A. Composites
  • A. Nickel aluminides
  • C. Laser processing
  • G. Wear-resistant applications

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