Effects of ZrO2 nanoparticle content on microstructure and wear behavior of titanium matrix composite

Faculty Engineering Year: 2020
Type of Publication: ZU Hosted Pages:
Authors:
Adel Fathy Meselhy Ibrahiem
Journal: Journal of Materials Research and Technology Elsevier Volume:
Keywords : Effects , ZrO2 nanoparticle content on microstructure , wear    
Abstract:
tThe Ti-ZrO2nanocomposites were fabricated by powder metallurgy route. The influence ofZrO2additions on the microstructure and properties of the Ti-based composites were exam-ined by X-ray diffraction, scanning electron microscopy, microhardness and wear propertiestests. The result showed that spread of ZrO2nanoparticles in the Ti matrix. XRD refers to nonew phase are formed between Ti and ZrO2during the sintering process. In addition, a goodmicrostructure is achieved. The densification behavior of the sintered nanocomposites isincreased with increasing ZrO2percent. The highest microhardness was measured as 570HV for titanium matrix nanocomposites fabricated by using 10%wt of ZrO2nanoparticlescontent. 290 HV was obtained for the titanium matrix. Results showed that the sliding wearrate increase with increasing the normal load and decrease via increasing the addition ofZrO2nanoparticles. In addition, the friction coefficient decreases with increasing the nor-mal load and via increasing the addition of ZrO2nanoparticles. The microstructure refinesdue to ZrO2addendums illustrated a considerable function in the wear behavior of the Timatrix.
    
     
 
       

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