Ahlatci, HCandan, EÇimenoglu, H2024-09-292024-09-2920041073-56231543-1940https://doi.org/10.1007/s11661-004-0161-1https://hdl.handle.net/20.500.14619/4091In the present work, the effect of an Mg addition on the mechanical properties of the Al-60 vol pet SiCp composites were investigated by uniaxial compression, three-point bending, impact and wear tests (composite-metal and composite-abrasive types). The composites were produced by the pressure-infiltration technique. The composition of the Al matrix was varied between 0 and 8 pet Mg. The mean diameter of the SiC particles was 23 mum. Upon addition of Mg, Mg2Si precipitated in the matrix and the amount of the porosity dramatically decreased. Mg-alloyed-matrix composites exhibited higher strength, lower toughness, and higher wear resistance than pure-Al-matrix composites. During composite-metal wear testina, wear progressed in two sequential periods (running-in and steady state). Weight loss during wear testing, decreased with increasing Mg content of the matrix. The degree of improvement of abrasive resistance depended on the abrasive-grain size. Above 200 degreesC, the composite-abrasive wear resistance decreased with increasing test temperature for all materials.eninfo:eu-repo/semantics/closedAccessMetal-Matrix CompositesDry Sliding WearFiber-Reinforced AluminumAbrasive WearParticle CompositesThreshold PressurePowder CompactsInfiltration TechniqueInterfacial ReactionsStainless-SteelArticle10.1007/s11661-004-0161-12-s2.0-344287841321417Q1212735AWOS:000222295900022Q1