Zobrazeno 1 - 10 of 61 pro vyhledávání: '"Luiz Cláudio Cândido"'
1
Akademický článek
Experimental and Numerical Investigation of Flash-butt-welded Joints in Pearlitic-steel Rails: Fatigue and Residual Stress
Autor: Rodrigo Rangel Porcaro, Leonardo Barbosa Godefroid, Francisco Célio de Araújo, Geraldo Lúcio de Faria, Luiz Cláudio Cândido
Publikováno v: Materials Research, Vol 26 (2023)
This study is focused on the performance evaluation of flash-butt-welded rail joints concerning their mechanical strength and fatigue life. Residual stresses created in the heat-affected zone were measured and the effects of the welding process and n
Externí odkaz: https://doaj.org/article/ed3e7e361cfc4a1d87bc472451615696
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2
Akademický článek
Effect of the Chemical Homogeneity of a Quenched and Tempered C-Mn Steel Pipe on the Mechanical Properties and Phase Transformations
Autor: Ana Paula da Silva Lima, Geraldo Lúcio de Faria, Vicente Braz da Trindade Filho, Luiz Cláudio Cândido
Publikováno v: Materials Research, Vol 22, Iss 4 (2019)
Seamless steel pipes for application in the oil and gas industries are manufactured from quenched and tempered steel. Aiming to meet the required characteristics, it is necessary that the microstructure and the mechanical properties are homogeneous a
Externí odkaz: https://doaj.org/article/c2ba92e62ee84890a69a2e69f3c45e9c
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3
Akademický článek
Evaluation of Standard API Casing Connections and Parametric API Buttress Improvement by Finite Element Analysis
Autor: Rodrigo Rangel Porcaro, Luiz Cláudio Cândido, Vicente Braz Trindade, Geraldo Lucio de Faria, Leonardo Barbosa Godefroid
Publikováno v: Materials Research, Vol 20, Iss 1, Pp 130-137 (2016)
Threaded and coupled connections generally present a non-uniform stress distribution, which is related to the higher stiffness of the box when compared to the pin. The non-uniform stress distribution can contribute to fatigue cracks and other failure
Externí odkaz: https://doaj.org/article/6a655c5c3dd34e82bc26511738980850
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4
Akademický článek
Microstructure and mechanical properties of two Api steels for iron ore pipelines
Autor: Leonardo Barbosa Godefroid, Luiz Cláudio Cândido, Rodrigo Vicente Bayão Toffolo, Luiz Henrique Soares Barbosa
Publikováno v: Materials Research, Vol 17, Iss suppl 1, Pp 114-120 (2014)
This research compares the mechanical behavior of two API steels (X60 and X70) used in the longest pipeline in the world for the conveyance of iron ore. Tensile tests, Charpy impact tests, CTOD tests and fatigue crack growth tests are performed at am
Externí odkaz: https://doaj.org/article/ae3220f832574d45850238b6804db4ed
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5
Akademický článek
Evaluation of hydrogen-Induced cracking resistance of the In625 laser coating system on a C-Mn steel substrate
Autor: Vicente Braz Trindade, Natália Chaves Almeida, Luiz Cláudio Cândido, Geraldo Lúcio de Faria, Milton Sergio Fernandes de Lima
Publikováno v: REM: International Engineering Journal, Vol 70, Iss 2, Pp 181-186
Abstract The corrosion of C-Mn steels in the presence of hydrogen sulfide (H2S) represents a significant challenge to oil production and natural gas treatment facilities. The failure mechanism induced by hydrogen-induced cracking (HIC) in a Inconel 6
Externí odkaz: https://doaj.org/article/b3a5049700a140d39286407a29b01f63
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7
Effect of thermal aging on the microstructure and mechanical properties of stainless steel UNS S31803
Autor: Junia Maria Gândara Costa, José Carlos de Lacerda, Leonardo Barbosa Godefroid, Luiz Cláudio Cândido
Publikováno v: Matéria (Rio de Janeiro) v.27 n.1 2022
Matéria (Rio de Janeiro. Online)
instacron:RLAM
Matéria (Rio de Janeiro), Volume: 27, Issue: 1, Article number: e13128, Published: 11 MAY 2022
Duplex stainless steel UNS S31803 exhibits high mechanical strength with high corrosion properties, due to its microstructure composed of ferrite and austenite phases, in equal proportion. When the UNS S31803 steel is submitted to high temperatures,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ffa037c05d2512638156622f7e141ff
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762022000100302
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8
Microstructure and mechanical properties of a flash butt welded pearlitic rail
Autor: Leonardo Barbosa Godefroid, Gabriela Ribeiro Apolonio, Rodrigo Rangel Porcaro, Elisângela Silva Pinto, Luiz Cláudio Cândido, Geraldo Lúcio de Faria
Publikováno v: Journal of Materials Processing Technology. 270:20-27
The structural changes resulting from the Flash Butt Welding (FBW) of pearlitic rails have been associated with wear/premature failures, despite this, there are no studies applying dilatometry to correlate the welding thermal cycles with the microstr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db5a39257f497b48441d88737200072a
https://doi.org/10.1016/j.jmatprotec.2019.02.013
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10
Failure analysis of a sleeper anchor model used in railroads
Autor: Leonardo Barbosa Godefroid, Geraldo Lúcio de Faria, Diego Antônio de Souza Santos, Luiz Cláudio Cândido
Publikováno v: Engineering Failure Analysis. 79:565-574
The sleeper anchors are important elements in railroads. They are introduced into the ballast, and, as the name suggest, they have an anchor function, increasing the railway stiffness. Many rail companies have used a double fixing sleeper anchor mode
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ae974259e0df2d68fa1c331500566067
https://doi.org/10.1016/j.engfailanal.2017.05.034
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