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Refratários para o transporte de alumínio líquido: fundamentos, simulação e prática industrial
(Universidade Federal de São Carlos, 2007-09-13)
Not only for the development of their products, the aluminum industry has
engaged its efforts in services for their customers. One of them is the molten
aluminum delivery (7 to 8 t) in crucibles for long distances (over ...
Avaliação da resistência à corrosão da liga 2024-T351 soldada por FSW Friction Stir Welding
(Universidade Federal de São Carlos, 2007-09-14)
The corrosion resistance of aluminum alloy can be impaired due to
intermetallic precipitation during thermal treatment to improve mechanical
properties. This work investigates the corrosion resistance of aluminum alloy
2024-T351 ...
Avaliação de um critério de equivalência entre dados de tração a quente e fluência em aços
(Universidade Federal de São Carlos, 2007-05-28)
This work was conducted in four stages, the first to understand the phenomena that affect the 2.25Cr-1Mo steel hot tensile in different conditions, observing their behavior in a wide range of temperature and strain rates, ...
Uso de LALLS in-line na extrusão de sistemas poliméricos bifásicos
(Universidade Federal de São Carlos, 2007-07-30)
In-line analysis equipments play an important hole in the study of polymer blends extrusion for supplying dynamic information concerning to the morphology of the dispersed phases, such as aspect ratio and size distribution ...
Avaliação do comportamento eletroquímico de juntas soldadas de aço inoxidável supermartensítico por feixe de elétrons baixo vácuo
(Universidade Federal de São Carlos, 2007-02-28)
The electrochemical evaluation of low vacuum electron beam weldments of supermartensitic stainless steel was carried out in terms of anodic polarization in potentiodynamic regime, intergranular corrosion by double loop ...
Propriedades mecânicas de tração e impacto dos aços inoxidáveis CA15 e CA6NM
(Universidade Federal de São Carlos, 2007-02-27)
The subject of this work was to study the mechanical properties, based in tensile and impact tests, of two stainless martensitic steels cast under designations of ASTM Standards, namely the CA15 steel, a steel with 12% of ...
Avaliação eletroquímica de juntas soldadas por fricção radial de aços inoxidáveis supermartensíticos
(Universidade Federal de São Carlos, 2007-03-23)
Supermartensitic stainless steels are used in the oil and gas industry to the construction of line pipes which require welding operations. This process affects the corrosion resistance of the welded joint. Recently, new ...
Análise da processabilidade de blendas PBT/ABS compatibilizadas in situ com copolímeros acrílicos
(Universidade Federal de São Carlos, 2007-12-14)
Poly(butylene terephthalate)/acrylonitrile-butadiene-styrene (PBT/ABS) blends show high toughness at room temperature, low ductile-brittle transition temperature and stable morphology when compatibilized. The flowability ...
Formação de grãos ferríticos ultrafinos através de transformação de fase induzida por deformação
(Universidade Federal de São Carlos, 2007-10-26)
One of the key points in steel development has been the refinement of the microstructure, however without change the chemical composition with addition of alloy elements. The refinement of the ferrite grain size leads ...
Desenvolvimento de eletrodo FGM a base de Ni-zircônia para célula a combustível de sólido óxido
(Universidade Federal de São Carlos, 2007-03-01)
The search for alternatives sources to fossil fuel has stimulated the
technological development of solid oxide fuel cell. Hydrogen is the ideal fuel for
this application. However, due to technical reasons, alternatives ...