Influence of the Cooling Rate on the Morphology of Spheroidic Graphite Obtained by the CO2 Process

Autores/as

  • Mauro Carlos Souza Universidade Estadual da Zona Oeste - UEZO Departamento de Metalurgia
  • Antonio Carlos de Araújo Santos Depatment of Metallurgical Processes at the West Zone State University, UEZO
  • Wilma Clemente de Lima Pinto Depatment of Metallurgical Processes at the West Zone State University, UEZO
  • Mila Rosendal Avelino Department of Mechanical Engineering at the Rio de Janeiro State University, UERJ,

DOI:

https://doi.org/10.47385/cadunifoa.v8.n22.146

Palabras clave:

solidification, casting, ductile iron cast, morphology

Resumen

The mechanical properties of cast metallic materials are strongly influenced by processing parameters, such as percentage of silicate, sand granulometry, and metallurgical processing. The ductile iron cast produced by the CO2 process depends on variables that determine the behavior of the material in service, such as the cooling rate and chemical composition. This study evaluated the influence of the cooling rate on the spheroidic graphite. In order to determine this effect, a simulation was performed in specimens with 20, 25, and 30 mm in thickness, through the characterization of type, measurement of nodule size, and distribution of nodules. Chemical analysis and mechanical resistance tests were performed. The 25 mm thick specimen showed the best behavior among the three thicknesses evaluated, presenting the formation of many small nodules and a small amount of larger nodules in the center.

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Biografía del autor/a

Mauro Carlos Souza, Universidade Estadual da Zona Oeste - UEZO Departamento de Metalurgia

Engenheiro Quimico, Mestrado em Eng Nuclear (COPPE/UFRJ, Doutorado em Metalurgia e Materiais (COPPE/UFRJ) Pos doc em Irradiação de Alimentos. Prof. Adjunto da UERJ e da UEZO, no Depto. de Metalurgia

Antonio Carlos de Araújo Santos, Depatment of Metallurgical Processes at the West Zone State University, UEZO

Graduação em Tecnólogo em Processos Metalúrgicos pelo Centro Universitário da Zona Oeste, Brasil(2010)
Professor Celetista do Centro Universitário da Zona Oeste , Brasil

Wilma Clemente de Lima Pinto, Depatment of Metallurgical Processes at the West Zone State University, UEZO

Doutorado em Química Inorgânica pela Universidade Federal do Rio de Janeiro, Brasil(2003)
Professor Adjunto doutor I da Universidade do Grande Rio , Brasil

Mila Rosendal Avelino, Department of Mechanical Engineering at the Rio de Janeiro State University, UERJ,

Doutorado em Engenharia Mecânica pela Universidade Federal do Rio de Janeiro, Brasil(2000)
Professor Adjunto da Universidade do Estado do Rio de Janeiro , Brasil

Citas

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Publicado

2013-08-10

Cómo citar

SOUZA, Mauro Carlos; ARAÚJO SANTOS, Antonio Carlos de; LIMA PINTO, Wilma Clemente de; AVELINO, Mila Rosendal. Influence of the Cooling Rate on the Morphology of Spheroidic Graphite Obtained by the CO2 Process. Cadernos UniFOA, Volta Redonda, v. 8, n. 22, p. 37–41, 2013. DOI: 10.47385/cadunifoa.v8.n22.146. Disponível em: https://unifoa.emnuvens.com.br/cadernos/article/view/146. Acesso em: 21 nov. 2024.

Número

Sección

Tecnologia e Engenharias

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