The Effect of Silica Abrasive Particle Sizes in Polyester Based Composite on the Tribological Properties of Ti64

Myo Minn; Sylvie Castagne

doi:10.4028/www.scientific.net/MSF.886.69

Paper Titles

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Microstructure and Final Properties of Cold-Rolled Ti-32.5Nb-6.8Zr-2.7Sn-0.3O Biomedical β Titanium Alloy
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Effect of Mo Addition to ZA22 Alloy Grain Refined by Ti-B on its Metallurgical and Mechanical Characteristics in the as Cast Condition
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The Effect of Silica Abrasive Particle Sizes in Polyester Based Composite on the Tribological Properties of Ti64
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Segment Formation in the Work Pieces of ZA22 Grain Refined by Some Rare Earth Elements and Subjected to Equal Channel Angular Pressing, ECAP, Process
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Compact KTA-Based Optical Parametric Oscillator Driven by a Passively Q-Switched YVO₄/Nd:YVO₄ Laser
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Non-Linear Modeling of the Dynamic Response of Single-Wall Carbon Nanotube SWNT Composites to NO₂ Gas in Air
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The Effect of Silica Abrasive Particle Sizes in Polyester Based Composite on the Tribological Properties of Ti64

Abstract:

Investigation of the tribological characteristics of Ti6Al4V (Ti64) was performed by using a pin-on-disc tribometer. Polymer composites composed of a polyester resin matrix and silica abrasives with two different particle sizes were used as the counterface pin material. The macro and micro surface features on the wear track in relation to different abrasive particle sizes were analyzed by using optical microscope and scanning electron microscope. The wear depth was monitored by utilizing surface profiler and the change in hardness of Ti64 was measured by using Vickers hardness tester before and after the test. The effect of sliding speeds on the coefficient of friction was also studied. During sliding against Ti64 substrate, the results showed lower coefficient of friction, smoother surface features, and lower wear rate for the case of the polymer composite pin with smaller silica particles size when compared to that of polymer composite pin with larger silica particles size. The higher sliding speed generated more wear debris, much deeper wear depth, and wider wear track on Ti64 substrate.