Sayd Farage David

@ifes.edu.br

Engenharia Mecânica
Instituto Federal do Espírito Santo



                    

https://researchid.co/saydfd
2

Scopus Publications

15

Scholar Citations

1

Scholar h-index

0

Scholar i10-index

Scopus Publications

  • Effect of controlled cooling after hot rolling on the mechanical properties of a low carbon niobium microalloyed steel wire rod
    Felipe Farage David, Sayd Farage David, Renan Carreiro Rocha, and Ricardo Arthur Sanguinetti Ferreira
    Trans Tech Publications, Ltd.
    The wire rod has high relevance due to its wide application as a raw material for steel wire and wire processed in cold rolling mills and drawing. The control of process variables, such as cooling rate, coiling temperature, rolling speed is essential for obtaining the microstructures and therefore mechanical properties of the material. The purpose of this work is to study the behavior of the microstructure and mechanical properties with the variation of thermomechanical treatment in the hot rolling of wire rod. The steels used in this study were the microalloyed niobium steel equivalent to ASTM A913 grade 50 and carbon steel equivalent to ASTM A510 grade 1013. Despite the carbon steel has higher equivalent carbon to microalloyed steel, was found higher yield strength (σe) in the microalloyed niobium steel. Thus, by applying appropriate thermomechanical treatment in microalloyed steel is possible to improve mechanical properties mainly due to grain refining.

  • Artificial neural network model for predict of silicon content in hot metal blast furnace
    Sayd Farage David, Felipe Farage David, and M.L.P. Machado
    Trans Tech Publications, Ltd.
    The growing focus on the efficiency of the reduction process in blast furnace generates an alteration in the way they operate. This modifies the conditions of transfer of silicon for the hot metal and can cause problems in the added value of your product. To evaluate the changes of the operational parameters of the reduction on the conditions of transfer of silicon process a mathematical model based on artificial neural networks has been implemented. Through this model it was possible to predict the silicon content to determine the influence of each operational parameter. Artificial neural networks were able to predict the silicon content through parameters of the reduction in blast furnace process, and this was verified by the precision of this model. The ANN showed that Theoretical flame temperature, Pressure blow and Coke rate have a positive influence on the silicon content in hot metal, and the Hot metal rate is inversely proportional to the silicon content of the hot metal.

  • Static aging behavior of microalloyed wire steel and carbon wire steel
    Felipe Farage David, Sayd Farage David, Lucas Lira Silveira, and Ricardo Arthur Sanguinetti Ferreira
    Trans Tech Publications, Ltd.
    The reinforcing wire production CA-60 is highly relevant due to its wide application in concrete products (welded wire mesh and truss girder), driven by growing demand for products of the construction area. One of the properties required by ABNT / NBR 7480/07 is the yield stress (σe), which has a direct effect on the maximum load that the structural component may be subjected in service. The addition of steel wire temperature during cold rolling increases the σe and reduces the ductility due to the aging phenomenon. These variations occur due to the formation of solute atoms atmosphere around the dislocations. The purpose of this paper is to study the behavior of σe during heat treatment of static aging at 100 °C in the wire CA-60 steel made from the niobium microalloyed steel equivalent ASTM A913 and the equivalent ASTM 1013 steel. As a result the wire carbon steel 1013 showed the same variation of σe during static aging of niobium microalloyed steel A913. This phenomenon was justified because of the increased level of pro-eutectoid ferrite and grain size in the carbon steel 1013.

  • Artificial neural networks model to predict the sulfur percentage at the hot metal in the blast furnace


  • Thermomicrostructural model for calculate the roll force, grain size and fractional recrystallization in carbon steels


RECENT SCHOLAR PUBLICATIONS

  • Anlise bibliomtrica na base de dados scopus sobre “tratamento trmico nos aos AISI 4140 e AISI 4340”
    D dos Santos Machado, GG Louzada, SF David, JC Sessa
    Caderno Pedaggico 21 (13), e12820-e12820 2024

  • Anlise bibliomtrica na base de dados scopus sobre “tmpera e ao carbono”
    PB Casteglione, TT Barbosa, SF David, JC Sessa
    Caderno Pedaggico 21 (13), e11433-e11433 2024

  • Tecnologias e novos materiais na confeco de brocas diamantadas
    SF David, FR de Souza Machado, R da Silva Guimares, JV Cheren, ...
    Congresso Fluminense de Ps-Graduao-CONPG 2023

  • Obteno do prealloyed Fe-Cu-Co via moagem de alta energia para uso em ferramentas diamantadas
    J Cherene, RS Guimares, M Filgueira, FR de Souza Machado, SF David
    Galo 2023

  • Desenvolvimento de uma estufa microcontrolada via arduino para controle da temperatura e umidade do ar de microscpios pticos
    FF David, TL Maria, AP Moreira, LMC Vasconcelos, VA Silvestre, ...
    Brazilian Applied Science Review 5 (1), 289-298 2021

  • Determinao das temperaturas de transformao AR1 e AR3 em barras de ao CA-50 laminadas a quente
    FF David, LMC Vasconcelos, VA Silvestre, SF David
    Brazilian Journal of Development 6 (11), 89375-89385 2020

  • An analysis of pulverized coal injection in blast furnaces by rist diagram
    SF David, FF David, RC Nascimento
    Brazilian Journal of Development 6 (11), 88911-88929 2020

  • Effect of Controlled Cooling after Hot Rolling on the Mechanical Properties of a Low Carbon Niobium Microalloyed Steel Wire Rod
    FF David, SF David, RC Rocha, RAS Ferreira
    Materials Science Forum 930, 333-338 2018

  • Artificial neural network model for predict of silicon content in hot metal blast furnace
    SF David, FF David, MLP Machado
    Materials Science Forum 869, 572-577 2016

  • Static aging behavior of microalloyed wire steel and carbon wire steel
    FF David, SF David, L Lira Silveira, RAS Ferreira
    Materials Science Forum 869, 435-440 2016

  • ESTUDO DE CASO: FABRICAO, CONTROLE E GESTO DE CUSTOS DE FIO DIAMANTADO NA EMPRESA COFIPLAST
    ACT Christo, WAG Canzian, WG Ferreira, I Cardoso, SF David, ...
    Revista Univap 22 (40), 353-353 2016

  • Parmetros termodinmicos e cinticos de misturas dessulfurantes base de CaO, MgO, SiO2 e CaF2
    FN Aguiar, HCC Oliveira, RC Nascimento, JR Oliveira
    Tecnologia em Metalurgia, Materiais e Minerao 9 (3), 242-249 2013

  • Anlise da influncia dos fatores operacionais dos altos fornos sobre o teor do silcio e enxofre no ferro gusa por meio de redes neurais artificiais
    SF David
     2013

  • AN ANALYSIS ABOUT THE PULVERIZED COAL INJECTION IN BLAST FURNACES AT ARCELORMITTAL TUBARAO 1 BY RIST DIAGRAM
    SF David, RC Nascimento, JR De Oliveira, MLP Machado
    Tecnologia em Metalurgia, Materiais e Mineracao 20110912, 84-96 2011

  • Thermomicrostructural model for calculate the roll force, grain size and fractional recrystallization in carbon steels
    MLP Machado, SF David, FF David
    Tecnologia em Metalurgia, Materiais e Mineracao 20100726, 794-803 2010

  • REVISO DE LITERATURA: FERRAMENTAS DIAMANTADAS COM MATRIZES FERROSAS
    D dos Santos Machado, SF David

  • SIMULAO DE CRESCIMENTO DE GRO EM METAIS: UMA ABORDAGEM ATIVA PARA O ENSINO TCNICO.
    BPS Freire, CF de Oliveira, J Rocha, MC Rodrigues, SF David

  • CRIAO E VIABILIDADE DE MATERIAL DIDTICO PARA ENSINO DE PROJEES ORTOGONAIS EM PRTICAS DE DESENHO TCNICO
    JR Rodrigues, CF de Oliveira, SF David, M Chagas

  • MODELO DE REDES NEURAIS ARTIFICIAIS PARA PREDIO DO TEOR DE ENXOFRE NO FERRO GUSA DE ALTOS FORNOS
    SF David, MB Silva, RC Nascimento, MLP Machado

  • Surface, microstructural and electrochemical analysis of Ti-6Al-4V alloy manufactured by direct metal laser sintering for biomedical applications
    RC Rocha, AG Galdino, SF David, PR Viana, FF David

MOST CITED SCHOLAR PUBLICATIONS

  • Artificial neural network model for predict of silicon content in hot metal blast furnace
    SF David, FF David, MLP Machado
    Materials Science Forum 869, 572-577 2016
    Citations: 33

  • Static aging behavior of microalloyed wire steel and carbon wire steel
    FF David, SF David, L Lira Silveira, RAS Ferreira
    Materials Science Forum 869, 435-440 2016
    Citations: 2

  • An analysis of pulverized coal injection in blast furnaces by rist diagram
    SF David, FF David, RC Nascimento
    Brazilian Journal of Development 6 (11), 88911-88929 2020
    Citations: 1

  • Parmetros termodinmicos e cinticos de misturas dessulfurantes base de CaO, MgO, SiO2 e CaF2
    FN Aguiar, HCC Oliveira, RC Nascimento, JR Oliveira
    Tecnologia em Metalurgia, Materiais e Minerao 9 (3), 242-249 2013
    Citations: 1