ESTUDO DA INOCULAÇÃO DE ALUMÍNIO POR TIB2, PROCESSADO POR MOAGEM DE ALTA ENERGIA
This work aims at verifying the influence of processing by high energy ball milling of titanium diboride (TiB2), to increase the effect of grain refining of high-purity aluminum. Various mills were carried out by varying the ratio of the initial TiB2 and aluminum charges. After obtaining the milling...
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| Tipo de recurso: | tesis de maestría |
| Estado: | Versión publicada |
| Fecha de publicación: | 2014 |
| País: | Brasil |
| Institución: | Universidade Estadual de Ponta Grossa (UEPG) |
| Repositorio: | Biblioteca Digital de Teses e Dissertações da UEPG |
| Idioma: | portugués |
| OAI Identifier: | oai:tede2.uepg.br:prefix/1440 |
| Acceso en línea: | http://tede2.uepg.br/jspui/handle/prefix/1440 |
| Access Level: | acceso abierto |
| Palabra clave: | moagem de alta energia agente nucleante diboreto de titânio (TiB2) high energy ball milling nucleating agent titanium diboride (TiB2) CNPQ::ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA |
| Sumario: | This work aims at verifying the influence of processing by high energy ball milling of titanium diboride (TiB2), to increase the effect of grain refining of high-purity aluminum. Various mills were carried out by varying the ratio of the initial TiB2 and aluminum charges. After obtaining the milling products, they were compressed in a cylindrical array as a uniaxial compressive stress of 100MPa, some were later sintered at 600°C for 30 minutes. The tablets were introduced in the metal bath of aluminum and castings at 800°C in thermal analysis cups. In metal baths, experiments with and without the presence of titanium as a solute, in addition to the variation of the content of TiB2 (0.15 and 0.30 wt%) can be observed. The results indicate a significant reduction in grain size, especially in the samples were nucleated with pellets which were sintered before being added to the bath. |
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