2014-06-262014-06-262007FEITOSA, Johnyson Pereira. Caracterização da liga 6101 refinada com a adição de diferentes teores de cobre e solidificadas em molde unidirecional horizontal e em molde "U". 2007. 80 f. Dissertação (Mestrado em Engenharia Mecânica) – Programa de Pós-Graduação em Engenharia Mecânica, Instituto de Tecnologia, Universidade Federal do Pará, Belém, 2007. Disponível em: http://repositorio.ufpa.br/jspui/handle/2011/5161. Acesso em:.https://repositorio.ufpa.br/handle/2011/5161The 6101 alloy (series 6xxx) was modified with addition of 0.05% and 0.3% of copper and with additions of grain refiners as Al-Ti-B. The alloys were thermally characterized (heat transfer coefficient of metal / mold, displacement speed of liquidus isothermal and cooling rate), mechanically (tensile strength and toughness module) and electrically (electric resistivity, specific resistance and power conductivity) using two forms of pouring out: one is horizontal directional solidification and the other into the "U" mold. By horizontal directional solidification was possible characterize the macrostructure, influenced by refiners of grain and by viscosity that copper provides in the metal / mold efficiency of alloys researched, modifying the thermal, mechanical and electrical properties. The solidification in "U" mold makes possible evaluates the mechanical and electrical properties, seeing the forming process variables of alloys, as forming rate, tensile strength, toughness and electric resistivity, power conductivity and electric resistance, using the specimens obtained in several diameters. For the “U” mold were casting more two alloys to evaluation, Al-0,6Mg-0,4Si-0,1Cu and Al-0,6Mg-0,4Si-0,2Cu. The mechanical and electrical properties had been influenced by cold working, copper content and shrinkage void presents into alloys structures.porAcesso AbertoLigas de alumínioCalor - TransmissãoSolidificaçãoAluminum alloysHeat - TransmissionSolidificationDissertaçãoCNPQ::ENGENHARIAS::ENGENHARIA MECANICA::PROCESSOS DE FABRICACAO