Effect of alloying on mechanical properties of as cast ferritic nodular cast irons

Sertucha, Jon; Lacaze, Jacques; Serrallach, J. A.; Súarez, Ramón; Osuna, F.

doi:10.1179/1743284711y.0000000014

Cited by 18 publications

(18 citation statements)

References 16 publications

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“…Such a variability has been observed by Sertucha et al 41) who reported that the nodule count (N A ) varied from 190 mm − 2 to 590 mm − 2 at given casting and inoculation conditions. The composition ranges of the four series of alloys that were investigated are given in Table 2 for the main elements and Table 3 for the low level elements.…”

Section: Impurities and Trace Elements Effectsmentioning

confidence: 80%

Microstructure of As-cast Ferritic-pearlitic Nodular Cast Irons

2016

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Section: Impurities and Trace Elements Effectsmentioning

confidence: 80%

Microstructure of As-cast Ferritic-pearlitic Nodular Cast Irons

2016

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“…In all cases, higher silicon contents reduce the measured impact energy for rupture as this element strongly increases the ductile to brittle temperature. 2,16 A maximisation of UTS and Y parameters leads to select the highest silicon contents while keeping the maximum value of elongation. Thus, a high silicon range (3?75-3?80 wt-%) combined with an intermediate range for carbon (3?30-3?40 wt-%) seems to be adequate as it has been stated previously in relation with Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The obtained cast parts were standard keel blocks. 2 Inoculation treatment was carried out by adding 0?014 kg (0?20 wt-%) of a commercial inoculant (grain size 0?2-0?5 mm, Si569?9 wt-%, Al50?93 wt-%, Ca5 1?38 wt-%, Bi50?49 wt-% and rare earth50?37 wt-%) into the cavity of the moulds before pouring them. Chemical compositions for all significant elements are shown in Table 1, which does not include the contribution of inoculation.…”

Section: Methodsmentioning

confidence: 99%

As cast high silicon ductile irons with optimised mechanical properties and remarkable fatigue properties

Torre

Loizaga

Lacaze

et al. 2014

Materials Science and Technology

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To cite this version:Urko de La Torre, Aitor Loizaga, Jacques Lacaze, Jon Sertucha. As cast high silicon ductile irons with optimised mechanical properties and remarkable fatigue properties. Materials Science and Technology, Maney Publishing, 2014, vol. 30 (n°12) The present work shows a comparative study regarding the mechanical properties of 25 as cast ferritic ductile iron alloys, nine of them with silicon contents higher than 3?00% and carbon contents lower than 3?60%. In a first step, different carbon equivalent values have been used in order to analyse the effect of this parameter on the mechanical properties. After this comparative analysis, the composition ranges C53?30-3?40 wt-% and Si53?75-3?80 wt-% have been selected as the most proper ones to optimise the tensile and impact properties among the high silicon ductile iron alloys. Finally, a second study was carried out to compare the tensile and fatigue properties of the optimised high silicon alloy with the corresponding ones obtained from an EN GJS 400-18-LT grade alloy with low silicon content. Although the room temperature impact values obtained from the high silicon ductile iron are lower than 6 J cm 22 , the measured fatigue limit of this alloy (358 MPa) is clearly higher than the one obtained from the low silicon cast iron (170 MPa). A discussion about the benefits and advantages of the high silicon alloy is included.

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“…All details on melt preparation and casting procedures have already been given Sertucha et al, 2012;De la Torre et al, 2014). In the present work, only results obtained on materials cast in standard keel-blocks (type II according to EN 1563) and in as-cast state will be considered.…”

Section: Experimental Informationmentioning

confidence: 99%

Statistical study to determine the effect of carbon, silicon, nickel and other alloying elements on the mechanical properties of as-cast ferritic ductile irons

Lacaze¹,

Sertucha²,

Larrañaga³

et al. 2016

REVMETAL

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ABSTRACT:There is a great interest in fully ferritic ductile irons due to their structural homogeneity, remarkable ductility and good response when machining. On the other hand the wide variety of raw materials available in foundry plants becomes a problem when controlling the chemical composition of the manufactured alloys. The present work shows a statistical study about the effect of different C, Si, Ni contents and other minor elements on structural and mechanical properties of a group of ferritic ductile iron alloys. A set of equations are finally presented to predict room temperature mechanical properties of ferritic ductile irons by means of their chemical composition and pearlite content. KEYWORDS:As-cast ferritic ductile cast irons; Carbon; Mechanical properties; Nickel; Silicon Citation / Cómo citar este artículo: Lacaze, J., Sertucha, J., Larrañaga, P., Suárez, R. (2016) "Statistical study to determine the effect of carbon, silicon, nickel and other alloying elements on the mechanical properties of as-cast ferritic ductile irons". Rev. Metal. 52 (2):e070. doi: http://dx.doi.org/10.3989/revmetalm.070. RESUMEN: Influencia del carbono, silicio, níquel y otros elementos de aleación sobre las propiedades mecáni-cas de la fundición con grafito esferoidal en bruto de colada.Las fundiciones con grafito esferoidal de matriz totalmente ferrítica tienen gran interés debido a su homogeneidad estructural, alargamiento destacable y su buena respuesta frente a las operaciones de mecanizado. Por otro lado, la extensa variedad de materias primas disponibles en las plantas de fundición supone un problema a la hora de controlar de forma efectiva la composición química de las aleaciones preparadas. En este trabajo se ha realizado un estudio estadístico sobre la influencia de los diferentes contenidos de carbono, silicio, níquel y de otros elementos minoritarios sobre las características estructurales y las propiedades mecánicas de un grupo de fundiciones con grafito esferoidal y matriz ferrítica. Finalmente, se han obtenido un número de ecuaciones que permiten predecir las propiedades mecánicas a temperatura ambiente de estas fundiciones en función de su composición química y su contenido de perlita en la matriz metálica.

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Effect of alloying on mechanical properties of as cast ferritic nodular cast irons

Cited by 18 publications

References 16 publications

Microstructure of As-cast Ferritic-pearlitic Nodular Cast Irons

Microstructure of As-cast Ferritic-pearlitic Nodular Cast Irons

As cast high silicon ductile irons with optimised mechanical properties and remarkable fatigue properties

Statistical study to determine the effect of carbon, silicon, nickel and other alloying elements on the mechanical properties of as-cast ferritic ductile irons

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