Please use this identifier to cite or link to this item: http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1797
Aluminum Sintering in Air Atmosphere Using High Frequency Induction Heating
JOSE MANUEL MENDOZA DUARTE
FRANCISCO ROBLES HERNANDEZ
IVANOVICH ESTRADA GUEL
Acceso Abierto
Sin Derechos Reservados
Aluminum
For decades, aluminum (Al) has been the most widely used industrial metal (after steel) for its appreciated properties. Unfortunately, the pure metal presents a lower mechanical response; normally to counter this disadvantage some alloy elements are added. However, its high electrical-thermal conductivity and corrosion resistance are compromised. As an alternative, the cold working process can be used to increase mechanical performance, but the ductility is drastically reduced due matrix embrittlement (dislocations saturation). Another hardening route is based on grain refinement (at submicron or nanometric level), where the material properties are positively modified. The mechanical milling (MM) technique involves repeated impacts between the sample and the grinding media causing plastic deformation, fracture and cold welding reaching a highly refined microstructure. After MM, some compaction and heat treatment steps are applied to milled powders to obtain solid samples. However, during the sintering process long term heating promotes a remarkable grain growth, destroying the highly refined state reached after MM.
2017
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Appears in Collections:Artículos de Congresos

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