2020
DOI: 10.1007/s41230-020-9147-x
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Simultaneous thermal and contraction / expansion curves analysis for solidification control of cast irons

Abstract: T he final control of the iron castings' quality involves different techniques, including chemical analysis, microstructure evaluation, physical and mechanical properties measurements, castings' surface parameters and casting soundness control, etc. It is important to forecast the final castings' characteristics before mould filling, by iron melt solidification control, applying techniques able to illustrate the eutectic undercooling values referring to the stable and metastable equilibrium temperatures, carbi… Show more

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Cited by 18 publications
(20 citation statements)
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“…Figure 5 show that the microstructure formation on specimen S4 is average and consists of a fully ferritic-matrix microstructure. Therefore, with the rapid cooling process, eutectic carbide formation and a microstructure containing cementite, ferrite, and pearlite are very uniform and compact on the surface area, as explained by Riposan L. et al [25] that the graphite carbide structure is formed at the end of the solidification step in the ductile iron casting process [35,36]. This occurs due to the rapid cooling of the interface through contraction between the cast liquid and the mold wall.…”
Section: The Formation Of Microstructure At the Surfacementioning
confidence: 99%
See 1 more Smart Citation
“…Figure 5 show that the microstructure formation on specimen S4 is average and consists of a fully ferritic-matrix microstructure. Therefore, with the rapid cooling process, eutectic carbide formation and a microstructure containing cementite, ferrite, and pearlite are very uniform and compact on the surface area, as explained by Riposan L. et al [25] that the graphite carbide structure is formed at the end of the solidification step in the ductile iron casting process [35,36]. This occurs due to the rapid cooling of the interface through contraction between the cast liquid and the mold wall.…”
Section: The Formation Of Microstructure At the Surfacementioning
confidence: 99%
“…As for research from Shi, Z et al, using Fe-Cr-C as a hardfacing alloy then doped with Ce elements to increase the ductility and toughness of materials, but it still did not increase the high hardness on the surface [24]. Also, the element chromium is commonly used to bond preferentially to other elements to increase the hardness of the material [25,26]. Therefore, based on these reasons, the authors tried to perform surface hardening of the martensitic ductile cast iron material using the chilled casting method.…”
Section: Introductionmentioning
confidence: 99%
“…The analysis of the main phases of cast iron: titanium carbide, phosphide eutectic and perlite matrix was performed using microstructure analysis [3]. Working out the optimal chemical composition it is necessary to try to obtain a favorable microstructure of cast iron for each specific case [3][4][5][6][7][8][9][10]. The naturally alloyed cast iron was found to have all the characteristics necessary to increase the service life of wear-resistant and heat-resistant products: high strength and wear resistance, and in the presence of phosphide eutectic, also good fluidity.…”
Section: Research Resultsmentioning
confidence: 99%
“…So, inoculants are added to produce heterogeneous nucleation of these graphite flakes and obtain the desired distribution. Improving manufacturing processes for cast iron is always needed and many gray iron studies focused on theories of graphite lamellar nucleation [7,8], pre-inoculation treatments [8,9], microstructure and mechanical properties [10][11][12], and inoculation fading effect [13,14] have been widely investigated but, few studies have been focused on the inoculant addition method. There are two main methods of inoculation: ladle and late inoculation.…”
Section: Introductionmentioning
confidence: 99%