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A route combining powder metallurgy and subsequent friction stir processing was utilized to fabricate carbon nanotube(CNT) reinforced Al(CNT/AI) and 6061 Al(CNT/6061AI) composites.Microstructural observations indicated that CNTs were uniformly dispersed in the matrix in both CNT/AI and CNT/6061 AI composites.Mg and Si elements tended to segregate at CNT—Al interfaces in the CNT/6061 AI composite during artificial aging treatment.The tensile properties of both the Al and 6061 Al were increased by CNT incorporation.The electrical conductivity of CNT/AI was decreased by CNT addition,while CNT/6061 AI exhibited an increase in electrical conductivity due to the Mg and Si segregation.
A route combining powder metallurgy and subsequent friction stir processing was utilized to fabricate carbon nanotube (CNT) reinforced Al (CNT / AI) and 6061 Al (CNT / 6061AI) composites. Microstructural observations indicated that CNTs were dispersed dispersed in the matrix in both CNTs / AI and CNT / 6061 AI composites. Mg and Si elements tended to segregate at CNT-Al interfaces in the CNT / 6061 AI composite during artificial aging treatment. The tensile properties of both the Al and 6061 Al were increased by CNT incorporation. electrical conductivity of CNT / AI was decreased by CNT addition, while CNT / 6061 AI exhibited an increase in electrical conductivity due to the Mg and Si segregation.