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This study investigates the wear characteristics of Al–25Mg2Si composite synthesized via gravity casting. The research aims to understand the influence of applied load, test temperature, contact condition (dry and lubrication), and sliding distance on wear characteristics. Results show that higher loads and temperatures lead to increased wear loss and coefficient of friction. The worn surface morphology...
This paper presents the friction and wear behaviour of TiB 2 –40vol%B 4 C ceramic composite disc in rotating sliding contact against SiC-ball and examines how the tribological characteristics of this system are affected by the interaction of wear particles, loading conditions and sliding speed. The transition from mild to severe wear is analytically modelled based on Linear Elastic...
The effects of atmospheric humidity and microstructure of counterface materials on the formation of tribo-layers on TiN coatings have been investigated. Pin-on-disc sliding wear experiments were conducted on physical vapour deposition (PVD) TiN-coated high speed steel (HSS) discs against HSS, mild steel and A356 Al-15% SiC pin materials under conditions of low and high relative humidity (RH). The...
This paper examines the flank and crater wear characteristics of titanium carbide (TiC)-coated cemented carbide tool inserts during dry turning of steel workpieces. A brief review of tool wear mechanisms is presented together with new evidence showing that wear of the TiC layer on both flank and rake faces is dominated by discrete plastic deformation, which causes the coating to be worn through to...
Ceramic wear maps have been developed to elucidate the complex interactions of the operating parameters, environments, and wear mechanisms. This paper summarizes these interactions for four ceramics, alumina, yttria-doped zirconia, silicon carbide and silicon nitride. Wear maps of these ceramics are systematically constructed using measured data under dry sliding, water, and paraffin lubricated conditions...
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