Abstract
Metal matrix composite (MMC) focuses primarily on improved specific strength, high temperature and wear resistance application. Aluminum matrix reinforced with titanium carbide and molybdenum disulfide has good potential and also self-lubrication. The main challenge is to produce this composite in a cost effective way to meet the above requirements. In this study Al–TiC-MoS2 castings with different volume fraction of TiC and MoS2 were produced in an argon atmosphere by an enhanced stir casting method. Hardness of the composite has increased with higher % of TiC addition. At that same time self-lubrication of composite has occur in the effort of MoS2. Dry sliding wear behavior of AMC was analyses with the help of a pin on disc wear and friction monitor. The present analyses reveal the improved hardness as well as wear resistance.
Highlights
Among several AMC fabrication techniques, stir casting is the most conventional and economical way. Several parameters such as type volume fraction of metal, size, wettability, interfacial reactions have to be considered during fabrication of composites (8) revealed that Al–TiCp castings with different volume fraction of TiC were manufactured in an argon atmosphere by an enhanced stir casting method. (1) reported that the Synthesis and tribological characterization of Al– TiCp composite produced by in situ process revealed that the volume fraction of TiC increased from 7% to 18% the wear rate decreased linearly. (3)investigated the tribological investigation of titanium-based materials for brakes
The result clearly shows that addition of MoS2 materials had a high coefficient of friction and good wear resistance exhibited a contrasted with the base synthesis compressive strength, hardness and density are influenced by the addition of MoS2
It was observed from figure 7 increasing the applied load and sliding distance the weight loss increasing and clearly shows that by increasing TiC, MoS2 particles as reinforcement the weight loss of composite decreases. similiar results were observed in Velmurugan, C., Subramanian, et al(11) “Experimental study on the effect of SiC and graphite particles on weight loss of Al 6061 hybrid composite materials
Summary
Among several AMC fabrication techniques, stir casting is the most conventional and economical way. The thermally spray-coated Ti disc showed the least wear and merits further attention as a lightweight, corrosion-resistant brake rotor material. This paper reports a significant of spraying distance in wear resistance of molybdenum coating. It shows the influence of test configuration and conditions on the wear performance ranking of molybdenum coatings. The result clearly shows that addition of MoS2 materials had a high coefficient of friction and good wear resistance exhibited a contrasted with the base synthesis compressive strength, hardness and density are influenced by the addition of MoS2
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