Effects of different inoculants on the microstructural characteristics of gray cast iron gg-25, hardness and useful life of tools
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta scientiarum. Technology (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/27460 |
Resumo: | Current study evaluated the machinability characteristics of parts, microstructure and mechanical properties when three different inoculants (IM-22 with FeSi-Ba/Zr; G-20 and FeSi-Ba; IMSR 75 with FeSi-Sr) were added in experiments carried out in a foundry. The research methodology was mailly based on the analysis of the machinability by the milling process of the specimens in gray cast iron GG-25, name according to DIN EN 1561.Evaluation of results is based on a thorough analysis of tool wear, surface finish, microstructural analysis, chemical composition and mechanical properties of the material. Results showed that among the studied inoculants strontium sulfide (SrS) was thermodynamically more stable than the others, because it leds towards a more negative free energy change of Gibbs and therefore more favorable to the formation of nuclei having greater critical radius (rc), solidification with heterogeneous nucleation. Its inoculant was also more efficient in forming a more favorable microstructure, greater amounts of eutectic cells and, longer life of the insert when machined. |
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Acta scientiarum. Technology (Online) |
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Effects of different inoculants on the microstructural characteristics of gray cast iron gg-25, hardness and useful life of toolsmachinabilitystrontium sulfidetool wearcritical radiuseutectic cells.3.03.03.02-8 - fundiçãoCurrent study evaluated the machinability characteristics of parts, microstructure and mechanical properties when three different inoculants (IM-22 with FeSi-Ba/Zr; G-20 and FeSi-Ba; IMSR 75 with FeSi-Sr) were added in experiments carried out in a foundry. The research methodology was mailly based on the analysis of the machinability by the milling process of the specimens in gray cast iron GG-25, name according to DIN EN 1561.Evaluation of results is based on a thorough analysis of tool wear, surface finish, microstructural analysis, chemical composition and mechanical properties of the material. Results showed that among the studied inoculants strontium sulfide (SrS) was thermodynamically more stable than the others, because it leds towards a more negative free energy change of Gibbs and therefore more favorable to the formation of nuclei having greater critical radius (rc), solidification with heterogeneous nucleation. Its inoculant was also more efficient in forming a more favorable microstructure, greater amounts of eutectic cells and, longer life of the insert when machined.Universidade Estadual De Maringá2015-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/2746010.4025/actascitechnol.v37i4.27460Acta Scientiarum. Technology; Vol 37 No 4 (2015); 355-360Acta Scientiarum. Technology; v. 37 n. 4 (2015); 355-3601806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/27460/pdf_114Martin, Diego RubenMoreno, Joao Roberto SartoriVicente, André de Albuquerqueinfo:eu-repo/semantics/openAccess2016-01-27T07:50:38Zoai:periodicos.uem.br/ojs:article/27460Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2016-01-27T07:50:38Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Effects of different inoculants on the microstructural characteristics of gray cast iron gg-25, hardness and useful life of tools |
title |
Effects of different inoculants on the microstructural characteristics of gray cast iron gg-25, hardness and useful life of tools |
spellingShingle |
Effects of different inoculants on the microstructural characteristics of gray cast iron gg-25, hardness and useful life of tools Martin, Diego Ruben machinability strontium sulfide tool wear critical radius eutectic cells. 3.03.03.02-8 - fundição |
title_short |
Effects of different inoculants on the microstructural characteristics of gray cast iron gg-25, hardness and useful life of tools |
title_full |
Effects of different inoculants on the microstructural characteristics of gray cast iron gg-25, hardness and useful life of tools |
title_fullStr |
Effects of different inoculants on the microstructural characteristics of gray cast iron gg-25, hardness and useful life of tools |
title_full_unstemmed |
Effects of different inoculants on the microstructural characteristics of gray cast iron gg-25, hardness and useful life of tools |
title_sort |
Effects of different inoculants on the microstructural characteristics of gray cast iron gg-25, hardness and useful life of tools |
author |
Martin, Diego Ruben |
author_facet |
Martin, Diego Ruben Moreno, Joao Roberto Sartori Vicente, André de Albuquerque |
author_role |
author |
author2 |
Moreno, Joao Roberto Sartori Vicente, André de Albuquerque |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Martin, Diego Ruben Moreno, Joao Roberto Sartori Vicente, André de Albuquerque |
dc.subject.por.fl_str_mv |
machinability strontium sulfide tool wear critical radius eutectic cells. 3.03.03.02-8 - fundição |
topic |
machinability strontium sulfide tool wear critical radius eutectic cells. 3.03.03.02-8 - fundição |
description |
Current study evaluated the machinability characteristics of parts, microstructure and mechanical properties when three different inoculants (IM-22 with FeSi-Ba/Zr; G-20 and FeSi-Ba; IMSR 75 with FeSi-Sr) were added in experiments carried out in a foundry. The research methodology was mailly based on the analysis of the machinability by the milling process of the specimens in gray cast iron GG-25, name according to DIN EN 1561.Evaluation of results is based on a thorough analysis of tool wear, surface finish, microstructural analysis, chemical composition and mechanical properties of the material. Results showed that among the studied inoculants strontium sulfide (SrS) was thermodynamically more stable than the others, because it leds towards a more negative free energy change of Gibbs and therefore more favorable to the formation of nuclei having greater critical radius (rc), solidification with heterogeneous nucleation. Its inoculant was also more efficient in forming a more favorable microstructure, greater amounts of eutectic cells and, longer life of the insert when machined. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/27460 10.4025/actascitechnol.v37i4.27460 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/27460 |
identifier_str_mv |
10.4025/actascitechnol.v37i4.27460 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/27460/pdf_114 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Technology; Vol 37 No 4 (2015); 355-360 Acta Scientiarum. Technology; v. 37 n. 4 (2015); 355-360 1806-2563 1807-8664 reponame:Acta scientiarum. Technology (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta scientiarum. Technology (Online) |
collection |
Acta scientiarum. Technology (Online) |
repository.name.fl_str_mv |
Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||actatech@uem.br |
_version_ |
1799315335830044672 |