Ivanchev, LCamagu, STGovender, G2013-03-262013-03-262012-10Ivanchev, L, Camagu, S.T and Govender, G. 2012. Semi-solid high pressure die casting of metal matrix composites produced by liquid state processing. Solid State Phenomena, vol. 192-193, pp 61-651662-97791012-0394http://www.scientific.net/SSP.192-193.61http://hdl.handle.net/10204/6629Copyright: 2012 Trans Tech Publications. This is an ABSTRACT ONLY. The definitive version is published in Solid State Phenomena, vol. 192-193, pp 61-65There are two main technologies for manufacturing of particulate reinforced metal matrix composites (MMC), solid state and liquid state processing. The great challenge of producing cast metal matrix composites is to prevent agglomeration of particulates. This tendency is more pronounced with decreasing the particulate size to fine micro- and nano size. A method for producing MMC was successfully implemented for mixing hybrid, nano and low micron sized, reinforcing particles in an aluminium alloy matrix. The hybrid SiC particles were produced by milling 3µm to 5µm SiC particles to a particle size range between 2.5µm and 150 nm. The hybrid particles were mixed with A356 aluminium alloy under combined magneto-hydrodynamic (MHD) and mechanical stirring. The composite was then transferred to a High Pressure Die Casting (HPDC) machine in the semi-solid state. The micron size particles were found to be predominantly in the intergranular eutectic while the nano-particles were predominantly in the primary a-Al grains. Increased ultimate tensile strength, yield strength and hardness were achieved for the new cast metal matrix hybrid component (MMHC) alloy.enMetal matrix compositesMMCMaterials scienceNano-particlesAlloysArticleIvanchev, L., Camagu, S., & Govender, G. (2012). Semi-solid high pressure die casting of metal matrix composites produced by liquid state processing. http://hdl.handle.net/10204/6629Ivanchev, L, ST Camagu, and G Govender "Semi-solid high pressure die casting of metal matrix composites produced by liquid state processing." (2012) http://hdl.handle.net/10204/6629Ivanchev L, Camagu S, Govender G. Semi-solid high pressure die casting of metal matrix composites produced by liquid state processing. 2012; http://hdl.handle.net/10204/6629.TY - Article AU - Ivanchev, L AU - Camagu, ST AU - Govender, G AB - There are two main technologies for manufacturing of particulate reinforced metal matrix composites (MMC), solid state and liquid state processing. The great challenge of producing cast metal matrix composites is to prevent agglomeration of particulates. This tendency is more pronounced with decreasing the particulate size to fine micro- and nano size. A method for producing MMC was successfully implemented for mixing hybrid, nano and low micron sized, reinforcing particles in an aluminium alloy matrix. The hybrid SiC particles were produced by milling 3µm to 5µm SiC particles to a particle size range between 2.5µm and 150 nm. The hybrid particles were mixed with A356 aluminium alloy under combined magneto-hydrodynamic (MHD) and mechanical stirring. The composite was then transferred to a High Pressure Die Casting (HPDC) machine in the semi-solid state. The micron size particles were found to be predominantly in the intergranular eutectic while the nano-particles were predominantly in the primary a-Al grains. Increased ultimate tensile strength, yield strength and hardness were achieved for the new cast metal matrix hybrid component (MMHC) alloy. DA - 2012-10 DB - ResearchSpace DP - CSIR KW - Metal matrix composites KW - MMC KW - Materials science KW - Nano-particles KW - Alloys LK - https://researchspace.csir.co.za PY - 2012 SM - 1662-9779 SM - 1012-0394 T1 - Semi-solid high pressure die casting of metal matrix composites produced by liquid state processing TI - Semi-solid high pressure die casting of metal matrix composites produced by liquid state processing UR - http://hdl.handle.net/10204/6629 ER -