Microstructures and wear behaviour of Y₂O₃ modified laser alloying layer on titanium
by Peng Li
International Journal of Materials and Product Technology (IJMPT), Vol. 46, No. 2/3, 2013

Abstract: Mo₅(Si, Al, Ti)₃C-TiC reinforced alloying layer was fabricated by laser alloying of the Mo-Al-Fe+TiC-SiC+Y₂O₃ mixed powders on pure Ti in an open system. Experimental results indicated that the precipitates, such as Mo₅(Si, Al, Ti)₃C and TiC were able to withstand the external normal load, which decreased the wear volume loss of laser alloying layer. And SiC-Y₂O₃ played an important role in refining the microstructure of alloying layer. An improvement of wear resistance of titanium surface was obtained under the actions of the hard precipitates and fine grain strengthening.

Online publication date: Sat, 21-Jun-2014

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