Gray Cast Iron
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Corrosión atmosférica acelerada en una fundición gris ASTM A48
ABSTRACT Due to the long times required to investigate atmospheric corrosion resistance of metals, data on the subject is scarce. One of these studies is the one made by Southwell et al., where the effect of corrosion in a cast gray iron during 16 years was studied in various environments. This research shows and discusses the behavior of cast gray iron when
Matéria (Rio J.). Publicado em: 19/07/2018
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2. Amorphization of Graphite Flakes in Gray Cast Iron Under Tribological Load
A gray cast iron disc, which had been submitted to a heavy duty automotive brake test, was examined with energy filtered transmission electron microscopy. A graphite flake in a convenient angular position showed the shear interaction of graphite layers with the iron matrix in nano-scale resolution. Atomic layers of graphite were wedged into the ferritic bulk
Mat. Res.. Publicado em: 28/05/2018
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3. Comportamiento bi-modal de una fundición gris y un acero estructural al carbono en corrosión atmosférica marina acelerada
ABSTRACT According to data gathered in the last Metal Foundry Industrial Production Survey [1], approximately 46% of the industrial production of ferrous alloys is gray-iron. In this context the study of the atmospheric corrosion resistance of gray-iron becomes interesting to asset its useful life when subject to weathering conditions. The studies of gray-ir
Matéria (Rio J.). Publicado em: 22/06/2017
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4. Uma contribuição ao estudo do torneamento em eixo comando de motores de ferro fundido cinzento / A turning contribution study to gray casting iron engine camshaft
A busca pela competitividade industrial tem sido a tônica dos últimos tempos. Uma das formas de se atingir alto nível nesse quesito é a diminuição dos custos de fabricação. A usinagem é um dos processos de fabricação mais importantes quando se necessita de tolerâncias mais precisas. Dentro da usinagem, um dos processos que apresentam maior custo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
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5. Desenvolvimento de um dispositivo para ensaio de corrosão sob tensão : aplicação para ferro fundido cinzento imerso em biodiesel B100 de soja / Development of a device for testing stress corrosion : application to gray iron on exposure to soy biodiesel B100
Neste trabalho propôs-se o projeto de um dispositivo apropriado para ensaio de corrosão sob tensão do tipo tração com deformação constante, que seja eficiente, simples e de baixo custo. A utilização deste equipamento em ensaios de corrosão sob tensão permite avaliar as propriedades de resistência dos materiais ensaiados com relação à tensão e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/07/2010
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6. Efeito do tamanho do abrasivo no desgaste de metais. / The effect of abrasive size on the wear resistance of metallic materials.
In this research, the effect of abrasive size on the wear resistance of five metallic materials was investigated. Abrasive wear tests using a pin test on alumina paper were carried out using abrasive sizes between 16 µm and 192 µm. The wear surface of the specimens was examined by scanning electron microscopy for identifying the wear micromechanism and the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/06/2010
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7. Behavior of granite-epoxy composite beams subjected to mechanical vibrations
The capacity to damp mechanical vibrations is one of the most important properties of granite-epoxy composites, even superior to the cast iron one. For this reason, these materials have been adopted for manufacturing of tool machine foundations and precision instruments. This work presents a study concerning the behavior of particulate composite beams, based
Materials Research. Publicado em: 2010-12
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8. Analysis of tool wear, surface roughness and cutting power in the turning process of compact graphite irons with different titanium content
Due to its good mechanical properties, the Compacted (Vermicular) graphite cast iron (CGI) has found a lot of applications in the automobilistic field. One of the applications is the production of high power diesel engine blocks that, due to the higher strength compared to the usual gray cast iron, allows the increase of the pressure inside the cylinder and,
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-09
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9. Influência do ciclo de füração na usinabilidade do ferro fundido cinzento GH190 / Influence of Cycle Drilling Machinability in Gray Cast Iron GH190
Dentre as operações de usinagem, a furação com brocas helicoidais destaca-se por ser uma das mais utilizadas na indústria metal-mecânica. Apesar de a literatura apresentar muitas pesquisas, percebe-se que ainda existe espaço para trabalhos científicos sobre o processo de furação. O presente trabalho analisa a influência do ciclo de furação (cont
Publicado em: 2010
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10. Estudo da usinabilidade dos ferros fundidos cinzentos ligados (CrCuSn e CrCuSnMo) e vermicular classe 350 no fresamento frontal em alta velocidade de corte
Cast iron is used to manufacture engine blocks due to its mechanical and physical properties like thermal conductivity and dumpy capacity, which are fundamental to these applications. Compacted graphite iron (CGI) has higher mechanical strength compared to gray cast iron and can be a great advantage in these type of mechanical parts. The compression rate can
Publicado em: 2009
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11. Parametros termicos e estruturais em ferros fundidos cinzento e nodular solidificados em moldes de areia e unidirecionalmente / Thermal and structural parameters in gray and ductile cast irons solidified in sand molds and under unidirectional conditions
In the present work unsteady state unidirectional solidification of a hypoeutectic gray cast iron and of a eutectic ductile cast iron is applied to analyze the influence of the process parameters an the flake and nodule count. For comparison purpose some samples were cast in sand molds. The experimental results of temperature variation in the casting were us
Publicado em: 2009
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12. Internal turning for cylinder liners made of centrifuged gray cast iron / Torneamento interno de cilindros automotivos de ferro fundido cinzento centrifugado
This investigation describes and shows an unprecedented machining process to be used for manufacturing cylinder liners, which are very important parts used in aluminum engine blocks for automobiles. There are few known companies that manufacture this kind of component, and until now, all of them use a boring process to machine the internal diameter of the cy
Publicado em: 2009