Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Carolina R. Barbosa"'
Autor:
Têyla C. Silva, André S. Barros, José C. Filho, Antonio L. Moreira, Carolina R. Barbosa, Otavio L. Rocha
Publikováno v:
International Journal of Metalcasting.
Autor:
Antonio Luciano Seabra Moreira, José C. Filho, Teyla C. Silva, Otávio L. Rocha, Carolina R. Barbosa, André dos Santos Barros
Publikováno v:
International Journal of Metalcasting. 16:1191-1205
Potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and microstructure characterization were performed on directionally solidified samples of the Al–3Cu–2Si alloy in order to study their corrosion behavior in a 0.2 M HCl e
Autor:
Hugo M. Azevedo, Otávio L. Rocha, José C. Filho, Carolina R. Barbosa, Antonio Luciano Seabra Moreira, Teyla C. Silva
Publikováno v:
International Journal of Metalcasting. 16:191-203
Electrochemical corrosion tests were performed on samples of horizontally solidified Al7Si0.3Mg (wt%) alloy. The investigated solidification and corrosion parameters were growth and cooling rates (VL and TR, respectively), secondary dendritic spacing
Autor:
Hugo M. Azevedo, Otávio L. Rocha, Marlo O. Costa, Carolina R. Barbosa, A Moreira, Fernando S. Rocha, Gabriel H. Machado
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 146:2059-2071
A transient horizontal solidification experiment was performed to investigate the role of the thermal parameters, such as growth and cooling rates (GR and CR, respectively), on the microstructure and microhardness (HV) of the Al2Si3Cu (mass%) alloy.
Autor:
Gabriel H. Machado, Otávio L. Rocha, Fernando S. Rocha, Carolina R. Barbosa, Hugo M. Azevedo, Tamires Isabela Mesquita Botelho, Thiago A. Costa
Publikováno v:
Transactions of Nonferrous Metals Society of China. 30:582-594
As-cast samples of the Al–3wt.%Ni–1wt.%Bi alloy resulting from the horizontal directional solidification process were subjected to the micro-abrasive wear test. The effects of the solidification thermal and microstructural parameters, such as the
Autor:
Arielly Assunção Pereira, Carolina R. Barbosa, Otávio L. Rocha, Fernando S. Rocha, José C. Filho, Hugo M. Azevedo, Gabriel H. Machado
Publikováno v:
Metals and Materials International. 26:370-383
In this work, solidification and T6-heat treatment experiments were performed with the Al7Si0.3Mg alloy in order to investigate the effect of processes parameters on the microstructure and microhardness (HV). A directional solidification device was u
Autor:
Hugo M. Azevedo, Adrina P. Sousa, Carolina R. Barbosa, Tamires Isabela Mesquita Botelho, Otávio L. Rocha, Thiago A. Costa
Publikováno v:
Tribology Letters. 68
To investigate dry wear behavior in an aluminum-based automotive alloy, transient horizontal solidification experiments using a water-cooled directional solidification device have been performed with the Al7Si0.3Mg alloy (wt%). Samples of the as-cast
Autor:
Ricardo Khouri, Bernardo Canedo, Thiago Cerqueira-Silva, Alvaro A. Cruz, Ivan Paiva, Victor Nunes, Manoel Barral-Netto, Louran Passos, Jedson dos Santos Nascimento, Viviane Boaventura, Aurea Angelica Paste, Sofia Andrade, Roberto Perez Carreiro, Pablo Ivan Pereira Ramos, Carolina R. Barbosa, Marília Santini
Publikováno v:
SSRN Electronic Journal.
In the past six months, COVID-19 pandemic has been imposing lots of challenges for both health care practices and medical training. Here we described a strategy combining telehealth and medical training of 1,026 supervised students in assisting suspe
Autor:
Rogério B. Costa, Otávio L. Rocha, Thiago A. Costa, Fernando S. Rocha, Carolina R. Barbosa, Hugo M. Azevedo, Gabriel H. Machado
Publikováno v:
Metallurgical and Materials Transactions A. 49:4722-4734
The combination of the structural and tribological properties presented by AlNiBi alloys has motivated us to establish, as the main objective of this study, the investigation of the microstructural evolution and its influence on the microhardness (HV
Autor:
M.C. Oliveira, Carolina R. Barbosa, André dos Santos Barros, Jacson Malcher Nascimento, J.O. Lima, Otávio L. Rocha, Igor A. Magno, Fabrício A. Souza
Publikováno v:
Transactions of Nonferrous Metals Society of China. 28:1073-1083
The increasing demand for reducing vehicle weight in the automotive and aerospace industries has raised the need to develop improved structural aluminum-based alloys. Thus, horizontal solidification experiment with the Al-7%Si-0.3%Mg (mass fraction)