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Manufatura aditiva da liga reciclada Al-Fe-Cr-Ti formadora de fase quasicristalina
(Universidade Federal de São Carlos, 2020-02-27)
The precipitation of quasicrystalline phase in an α-Al dendritic matrix provides Al-based alloys with high mechanical and wear resistance, mainly at high temperatures, which are promising for applications as automotive and ...
Fadiga de aços TWIP de baixa densidade produzidos por conformação por spray e forjamento rotativo.
(Universidade Federal de São Carlos, 2020-02-19)
The present study evaluated the mechanical properties in monotonic and
cyclic stress of two low-density steel designed by thermodynamic calculations
aiming stacking fault energy values that would allow different plasticity ...
Efeito do inoculante Al-Nb-B na microestrutura e propriedades mecânicas da liga AA2017 fabricada por fusão em leito de pó a laser
(Universidade Federal de São Carlos, 2023-01-24)
The blending of finer powders of Ti, Zr, Ta, Sc, and Nb compounds as inoculants has been a promising strategy to modify precipitation-hardened aluminum alloys for laser-based powder bed fusion process (L-PBF), promoting a ...
Avaliação de corrosão sob tensão e corrosão-fadiga do aço API 5L X70 em solução etanólica sintética
(Universidade Federal de São Carlos, 2022-04-07)
API X70 steel has been widely used in Brazil for the manufacture of ethanol transport pipelines, however, a recognized problem in carbon steel pipes exposed to ethanol is stress corrosion cracking (SCC) and, in addition, ...
Caracterização microestrutural e mecânica da liga Ti-35Nb-7Zr-5Ta produzida por fusão seletiva à laser
(Universidade Federal de São Carlos, 2020-08-10)
Selective Laser Melting (SLM) is an additive manufacturing technique that
consists of a layer-by-layer fusion of a powder bed by scanning a laser enabling
the production of full density parts accordingly to a 3D CAD model ...
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 ...
Multilayered refill friction stir spot welding of AA2024 and aluminum foils for electric vehicle battery application
(Universidade Federal de São Carlos, 2020-11-06)
Different processes are currently being used to weld aluminum and copper in a multilayered configuration in battery pouches for the automotive industry. The methods most used are mechanical joint, ultrasonic welding, laser ...
Refill friction stir spot welding of different thickness Al-Cu alloy using a tool with reduced dimensions for aerospace application
(Universidade Federal de São Carlos, 2020-11-12)
Refill Friction Stir Spot Welding has grown as an interesting alternative to conventional joining techniques in recent years, especially when it comes to high strength aluminum alloys. Although current results show promise, ...
Detector óptico NIR in-line para monitoramento da degradação termomecânica do polipropileno durante a extrusão
(Universidade Federal de São Carlos, 2022-05-02)
The present research aimed to develop an in-line NIR (near infrared) optical detector to monitor polypropylene (PP) thermomechanical degradation during extrusion. The optical detector monitors, in real time, the absorbance ...
Estudo de Ligas Fe-Nb-B Nanocristalinas Eutéticas Ultrafinas e Laser Cladding de Pós Atomizados
(Universidade Federal de São Carlos, 2020-05-20)
Fe-Nb-B alloys have gained much attention in recent years because of the possibility to obtain different constituents in nanostructured composites, amorphous and ultrafine eutectics (scale of 100 nm to 1 μm) alloys depending ...