Assessment of the Tribological Properties of Aluminum Matrix Composites Intended for Cooperation with Piston Rings in Combustion Engines.

Tribological interactions between the piston groove and ring in combustion engines have a significant influence on mechanical friction losses. Based on the analysis of the distribution of forces acting on the piston, the conditions for the friction tests were selected. The research was carried out on composites reinforced with silicon carbide (SiC), glassy carbon (GC), and a hybrid mixture of particles (SiC + GC).

Regeneration of Aluminum Matrix Composite Reinforced by SiC and GC Using Gas Tungsten Arc Welding Technology.

The main motivation behind the presented research was the regeneration of the damaged surface of composite materials. The testing of melting and pad welding of the composite surface by Gas Tungsten Arc Welding (GTAW) with alternating current (AC) were carried out. The material of investigation was an AlSi12/SiCp + GCsf hybrid composite made by a centrifugal casting process.

Effect of Post-Process Curing and Washing Time on Mechanical Properties of mSLA Printouts.

The article discusses the influence of the post-process on the mechanical properties of elements produced with the use of the mask stereolithography (mSLA) method. Printed samples were subjected to the following post-process steps: Washing and post-curing, at various times. Then, static tensile and static bending tests were carried out, as well as Shore D hardness measurements for the inner and surface part of the sample, as well as profilographometric analysis of the surface.

Tribological Properties of Single (AlSi7/SiC AlSi7/GC) and Hybrid (AlSi7/SiC + GC) Composite Layers Formed in Sleeves via Centrifugal Casting.

When designing the composition and structure of a composite material intended for tribological cooperation, many external and structural factors must be considered. The aim of this research was to compare the tribological properties (wear resistance and friction coefficient) of AlSi7Mg1Sr0.03/SiC and AlSi7Mg1Sr0.