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Desenvolvimento de compósito epóxi/fibra de vidro produzido por enrolamento filamentar para revestimento interno de coluna de produção de petróleo em aço carbono na exploração offshore
(Universidade Federal de São Carlos, 2021-08-04)
Epoxy/glass fiber composites (GRE) were produced by filament winding with a view to application as a liner in a carbon steel tube to replace all-metal super duplex stainless steel column in offshore petroleum exploration. ...
Reaproveitamento de resíduos da agroindústria da laranja para a produção de compostos biodegradáveis em matriz de PBS
(Universidade Federal de São Carlos, 2021-09-24)
The employment of biodegradable polymers is a partial solution to the problem of environmental plastic pollution, since conventional polymers are resistant to many environmental influences and it may take centuries for ...
Descrição termodinâmica via CALPHAD do líquido super-resfriado no Sistema Mo-Nb-B com o modelo de 2-Estados
(Universidade Federal de São Carlos, 2021-08-12)
In the present work, we will use the Thermo-CalcTM software to model
with the CALPHAD method the super-cooled liquid (SCL) that leads to the
formation of metallic vitreous materials. This research aims to improve ...
Desenvolvimento de ligas de alumínio recicladas contendo a fase primária Al(Fe,TM)Si aproximante de quasicristal: controle da microestrutura visando aplicações tribológicas e mecânicas
(Universidade Federal de São Carlos, 2021-01-19)
Iron is the most common and harmful impurity to the mechanical properties of casting Al-7Si-3Cu alloys, which are widely used in the automotive industry. Due to the economic and environmental advantages of recycling, there ...
Weldability of AA5083-O/H111 and naval GL D36 steel lap joints by friction stir welding
(Universidade Federal de São Carlos, 2021-01-25)
Steel structures welded with aluminum alloys, which combine the low cost and high mechanical strength of steel with the weight reduction and the excellent specific properties of the aluminum alloys, are in great demand. ...
Relaxação estrutural de vidros metassilicato de chumbo e dissilicato de lítio
(Universidade Federal de São Carlos, 2021-02-25)
Glasses are thermodynamically unstable and spontaneously relax towards the supercooled liquid state. The relaxation time varies from seconds at temperatures above the glass transition to geological times at room temperature. ...
Efeito da microadição de oxigênio na estabilidade microestrutural da liga Ti-29Nb-13Ta-4,6Zr processada via deformação plástica severa e envelhecimento
(Universidade Federal de São Carlos, 2021-02-24)
Gum Metal corresponds to a family of β-Ti alloys that are currently receiving great attention due to its outstanding properties such as low elastic modulus, superelasticity, and high tensile strength. These alloys show ...
Equilíbrio de fases e propriedades mecânicas da liga de elemento multiprincipal Cr40Co40Ni20
(Universidade Federal de São Carlos, 2021-02-19)
In the pursuit for materials with improved performance, multi-principal element alloys (MPEAs) attract the interest of the scientific community, due to their large composition space. Some Cr-Co-Ni alloys stand out with ...
Avaliação dos modelos numéricos para a simulação da secagem de concretos refratários
(Universidade Federal de São Carlos, 2021-02-25)
The drying of hydraulic bonded monolithic refractories is the slowest stage of their application process. Problems related to the control of such a procedure result in cracks, spalling and even, in extreme cases, explosions ...
Influência da nióbia no óxido de alumínio eletrofundido para aplicações abrasivas
(Universidade Federal de São Carlos, 2021-07-29)
Abrasives are materials that have as main characteristics their cutting and
grinding power. In its most common crystalline form, aluminum oxide, due to its
high melting point, high hardness and mechanical resistance, ...