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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 ...
Pesquisa em consolidação do fechamento de vazios internos em produtos forjados no aço W.Nr. 1.2738 modificado
(Universidade Federal de São Carlos, 2018-11-23)
During steel ingot solidification, internal voids are expected to be formed in its interior. Such voids, if they stay in the final product after the forging step, will hurt the performance and properties of the final ...
Otimização do processo de soldagem robotizada tandem GMAW do aço ASTM A572 G50
(Universidade Federal de São Carlos, 2018-10-31)
The tandem welding process employs double wire feed in a single torch,
providing increased deposition rate and consequent reduction in process times.
However, the process complexity increases because the correct combination ...
A influência da adição de MgH₂ em Mg visando a aplicação em tanques de armazenagem de hidrogênio
(Universidade Federal de São Carlos, 2018-09-28)
Magnesium Hydride is a promising material for Hydrogen storage, due to its high capacity, excellent reversibility and low cost of metallic magnesium. High energy ball milling is the main technique for obtaining Mg with ...
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 ...
Refill friction stir spot welding: investigation of the similar and dissimilar welding of AA5754-H22 and AA6061-T6 sheets
(Universidade Federal de São Carlos, 2019-06-03)
The automotive industry is shifting to a new paradigm of material utilization in vehicles. Different parts of the car structural body are increasingly being made of materials selected to have a customized performance ...
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 ...
Estudo da microestrutura e resistência à corrosão de ligas binárias Ni-Nb solidificadas rapidamente
(Universidade Federal de São Carlos, 2018-02-26)
The The aim of this work is to study the microstructure and corrosion resistance of rapidly solidified binary Ni-xNb alloys (x= 10, 20, 30, 40, 45, 52 e 57 wt%), additionally the microstructure of the Ni-52Nb alloy, prepared ...
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 ...
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 ...