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Process parameters optimization and microstructure evaluation on friction spot-welded aluminum/copper dissimilar joints
(Universidade Federal de São Carlos, 2016-11-17)
Dissimilar materials welding is a field of increasing interest for a wide range of industrial applications. Specifically, the welding of aluminum alloys with copper has potential applications in the heating, ventilation ...
Processo de laminação com resfriamento criogênico em ligas de magnésio para armazenagem de hidrogênio
(Universidade Federal de São Carlos, 2017-08-25)
The use of metallic hydrides is a competitive alternative to the hydrogen storage in the liquid or gas states. The magnesium is cheap and forms the metal hydride with higher gravimetric capacity. In this work, the commercial ...
Friction surfacing of aluminum alloy 5083-H112 over AA 2024-T3
(Universidade Federal de São Carlos, 2018-03-23)
Friction surfacing (FS) is an advanced solid-state process in surface modification with increasing applications in reclaiming worn parts, hardfacing and corrosion protection. It is considered a derivation of the friction ...
Crescimento super e subcrítico de trincas em vidros e vitrocerâmicos analisado via indentacão
(Universidade Federal de São Carlos, 2012-07-02)
In this dissertation we quantified properties that may better describe the mechanical behaviour of different glasses and glass-ceramics of the Na2O-CaO-SiO2-P2O5 system, based on the Biosilicate®chemical composition developed ...
Avaliações e correlações das propriedades reológicas, mecânicas e de cinética de cristalização de polímeros utilizados em processo de impressão 3d por FFF
(Universidade Federal de São Carlos, 2018-09-03)
Recently there has been an interest increase in the additive manufacturing process (AM), Fused Filament Fabrication (FFF) is one of the most commercially important extrusion-based process. The success of this technology ...
Blendas de poli(tereftalato de etileno) e poliamida 66 modificadas com sepiolita
(Universidade Federal de São Carlos, 2018-03-02)
Blends of recycled bottle-grade polyethylene terephthalate and virgin polyamide
66 (PET/PA66) with different compositions (75/25, 50/50, 25/75) unfilled and filled
with 5 phr of sepiolite clay (Sep) were investigated. ...
Compatibilização química em compósitos de PLA reforçados com fibras de sisal
(Universidade Federal de São Carlos, 2018-07-13)
Even though poly(lactic acid) (PLA) is fragile under impact and has low toughness, the polymer stands out for its stiffness and high tensile strength. This polymer is an interesting material not only for short-term ...
Nanocompósitos de poliuretano comercial e nanopartículas híbridas de núcleo Fe3O4 funcionalizado com capa orgânica de Poli(1,4-Butanodiol)
(Universidade Federal de São Carlos, 2018-02-23)
The use of inorganic nanoparticles in polymer nanocomposites allows gain in mechanical resistance and new properties. However, the incorporation of organic layer functionalized nanoparticles alters the material’s properties ...
Estudo da resistência à corrosão de ligas de alumínio com grãos ultrafinos obtidos por deformação plástica severa através do processo ECAP
(Universidade Federal de São Carlos, 2017-10-02)
The present work evaluated the effect of severe plastic deformation and ultrafine grains, obtained through the ECAP (equal-channel angular pressing) process, in the corrosion resistance of AA1050 aluminum alloy. The ...
Solidificação, microestrutura e propriedades mecânicas da liga de alumínio 6061 com 1,4%p Fe processada por conformação por spray e extrusão a quente
(Universidade Federal de São Carlos, 2017-11-24)
The 6xxx series aluminum alloys are wrought alloys which belongs to the MgSi class and can be heat treated, have a good workability and a good mechanical resistance / weight ratio. A great challenge is to avoid impurity ...