Wear behaviors of an (TiB + TiC)/Ti composite coating fabricated on Ti6Al4V by laser cladding

A titanium-based composite coating reinforced by in situ synthesized TiB whiskers and TiC particles was successfully fabricated on Ti6Al4V by laser cladding. The coating is mainly composed of α-Ti cellular dendrites and a eutectic in which a large number of needle-shaped TiB whiskers and a few equia...

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Veröffentlicht in:	Thin solid films 2011-05, Vol.519 (15), p.4804-4808
Hauptverfasser:	Li, Jun, Yu, Zhishui, Wang, Huiping
Format:	Artikel
Sprache:	eng
Schlagworte:	Cellular Coating Composite coatings Condensed matter: structure, mechanical and thermal properties Dendritic structure Exact sciences and technology In situ synthesis Laser beam cladding Laser cladding Mechanical and acoustical properties Microstructure Particulate composites Physical properties of thin films, nonelectronic Physics Structure and morphology thickness Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties) Thin film structure and morphology Titanium base alloys Titanium carbide Wear behaviors Whiskers and dendrites (growth, structure, and nonelectronic properties)
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Beschreibung
Zusammenfassung:	A titanium-based composite coating reinforced by in situ synthesized TiB whiskers and TiC particles was successfully fabricated on Ti6Al4V by laser cladding. The coating is mainly composed of α-Ti cellular dendrites and a eutectic in which a large number of needle-shaped TiB whiskers and a few equiaxial TiC particles are uniformly embedded. The wear resistance of the coating is significantly superior to that of Ti6Al4V under the dry sliding wear condition at room temperature.
ISSN:	0040-6090 1879-2731
DOI:	10.1016/j.tsf.2011.01.034