2024-06-122024-06-122024-05-14NASCIMENTO, Jeovan Ramos. Construção de um dispositivo de solidificação unidirecional ascendente resistivo para extração de calor em regime transiente de ligas a base de alumínio. Orientador: Deibson Silva da Costa. 2024. 60 f. Trabalho de Curso (Bacharelado em Engenharia de Materiais) – Campus Universitário de Ananindeua, Universidade Federal do Pará, Ananindeua, 2024. Disponível em: https://bdm.ufpa.br/jspui/handle/prefix/7005. Acesso em:.https://bdm.ufpa.br/jspui/handle/prefix/7005Aluminum-based alloys are widely used in the automobile and aerospace industries due to their mechanical and electrical properties when combined with other elements. For the manufacture of aluminum-based parts, the manufacturing process is an important item to be considered, as they go through the casting and solidification process. Unidirectional solidification is a resource used when one wishes to characterize the behavior of an alloy for a given cooling rate. Unidirectional solidification molds are specifically designed to control the direction and rate of cooling during metal solidification. They can be made from refractory materials and have a cooling system at the bottom to promote heat extraction in a controlled manner. Therefore, the main objective of the work was to build an ascending unidirectional solidification device with a transient heat flow regime and verify its efficiency through macro and microstructural analyzes of aluminum-based alloys. To manufacture the device, refractory materials, electrical resistance and a temperature controller were used. Subsequently, the heating curve was obtained, which showed that the device in approximately 3 minutes reached a temperature of 800 ºc and had a maximum of 1000 ºc, having inside the amount of heat and desirable temperature in order to obtain a gradient just in one direction. To verify the efficiency of the device, three aluminum-based alloys were solidified: al-2.5%ni, al-9%ni and al-4.5%cu-2.5%ni and it was verified, through metallographic characterization, columnar grains indicating that the entire hydraulic and heating system of the device chamber were effective.Acesso AbertoDispositivoLigas de alumínioFundiçãoDeviceAluminum aloysCastingCNPQ::ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::METALURGIA DE TRANSFORMACAO::FUNDICAOTrabalho de Curso - Graduação - Monografia