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Otimização das propriedades mecânicas da liga de alumínio 319 contaminada com ferro
(Universidade Federal de São Carlos, 2019-02-15)
The influence of iron additions (0.6, 0.8, 1.2 and 1.5 wt.%) and heat treatment on the microstructure and tensile properties of the 319-aluminum alloy processed by spray forming and rotary swaging was investigated. The ...
Influence of surface treatments on corrosion resistance properties of ultrafine grained titanium alloys for biomedical applications
(Universidade Federal de São Carlos, 2019-08-09)
Titanium and its alloys are used as biomaterials because their excellent combination of high corrosion resistance, low modulus of elasticity and biocompatibility. However, titanium and its alloys cannot meet all the clinical ...
Mechanical properties and metallurgical characterization of AA6082-T6 alloy welded by refill friction stir spot welding
(Universidade Federal de São Carlos, 2019-07-30)
The efforts to produce automobiles with intense use of aluminum alloys is growing and the 6XXX series of aluminum alloys are important for this scenario. However, the current joining technologies applied in these alloys ...
Selective laser melting of a biocompatible Ti-35Nb-7Zr-5Ta alloy
(Universidade Federal de São Carlos, 2019-08-12)
Neste trabalho, estudou-se uma nova rota de fabricação de peças de uma liga biocompatível. Assim, uma liga Ti-35Nb-7Zr-5Ta (% em peso) biocompatível foi processada por fusão seletiva a laser (FSL). Os principais parâmetros ...
Estudo da indução da grafitização da resina fenólica fenol/formaldeído
(Universidade Federal de São Carlos, 2019-08-14)
Among the probable carbon sources, there are the polymers, as the phenolic resin, which produces residual carbon around 60% wt./wt. after thermal treatment. It is classified as non-graphitizable, because it has not graphitic ...
Influência da taxa de resfriamento no módulo de elasticidade de ligas beta Ti e obtenção de diagramas CCT
(Universidade Federal de São Carlos, 2019-07-31)
The metallic alloys used as orthopedic implants, such as the Ti-6Al-4V, present some problems of biological and mechanical compatibility. In addition, the great difference between the elastic modulus of human bone and the ...
Seleção de sistemas de isolamento térmico multi-componentes para fornos de altas temperaturas baseada no desempenho térmico
(Universidade Federal de São Carlos, 2019-12-04)
Controlled heating through furnace development has allowed the humankind to mold the matter to obtain various products for several different purposes. However, some of them require high-temperature processes so that the ...
Desenvolvimento de nanocompósitos híbridos a partir de nanopartículas de magnetita funcionalizadas com macromoléculas de polietilenoglicol
(Universidade Federal de São Carlos, 2019-08-30)
New technologies aim for new materials. The increase in search for new materials with hybrid properties is growing exponentially. Polymers, metals and ceramics may be exposed within their application areas, but they cover ...
Desenvolvimento de ligas amorfas e nanocristalinas do sistema Fe-Cr-Ni-B e suas propriedades de corrosão
(Universidade Federal de São Carlos, 2019-02-14)
Fe-Cr-Ni-B system alloys with partially amorphous structures can ensure a very attractive combination of mechanical and electrochemical properties, far superior to conventional materials. It can be used, for example, in ...
Desenvolvimento de filmes de amido incorporados com cera de abelha por casting contínuo
(Universidade Federal de São Carlos, 2019-08-09)
Starch films appear as an alternative to problematic non-biodegradable plastic films; however, they have low water resistance and require the addition of a hydrophobic component to be viable substitutes for non-biodegradable ...