By combining the characteristic features of the matrix and the reinforcing phase, the analyzed material gains an additional advantage, namely a higher resistance to abrasive wear. The second factor was the structure of the cobalt matrix, with dominant content of the hexagonal phase. The better resistance to abrasive wear for SLS was explained by the presence of a hard, intermetallic phase, present as precipitates limited in size and evenly distributed in the cobalt matrix. Structure characterization, mainly with the use of transmission electron microscopy, was applied to investigate the differences in tribological properties. The aim of the present work was to analyze and compare the structure and wear resistance of Co-based alloy samples with low carbon content, produced by Selective Laser Sintering (SLS) and Powder Injection Molding (PIM). The high carbon improves the wear properties, but causes fragility and dangerous cracking of elements during use. Cobalt alloys are widely used in biomedicine, implantology, and dentistry due to their high corrosion resistance and good mechanical properties.
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