Inoculant enhancer to increase the potency of Ca-FeSi alloy in ductile cast iron

Riposan, Iulian; Uta, Valentin; Stan, Stelian

doi:10.1051/metal/2017041

Cited by 4 publications

(1 citation statement)

References 13 publications

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“…Despite such considerable output cast iron is still subject to many scientific studies conducted by a lot of scientific centers. The studies cover both theoretical problems regarding the solidification process of liquid alloys, the mechanism of graphite insert separation [2,3,4,5], as well as the reasons for casting defects, how to avoid them and simulating the solidification process [6,7,8]. The studies also cover the problems of different composition of charge materials in the charge (reducing the quantity of pig iron, introducing new carburizing materials, using silicone carbide for smelting in electric furnaces) [9,10,11].…”

Section: Introductionmentioning

confidence: 99%

Archives of Foundry Engineering

Petrus¹,

Bulanowski²,

Kołakowski³

et al. 2019

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This paper presents the problems related to smelting gray and ductile cast iron. Special attention is paid to the metallurgical quality of cast iron. It depends on the type of furnace, charge materials and the special combination of charge, overheating and holding temperature, melting time, modification and spheroidization method. The evaluation of metallurgical quality has been performed by using derivativethermal analysis (DTA). During the smelting process and secondary metallurgy, the ITACA system was used allowing to obtain information on alloy characteristic temperatures (Tliquidus, TeMin, TeMax, Tsolidus), VPS value, recalescence value, IGQ coefficient, nucleation gauge, porosity etc. The results of investigations and calculations are displayed in the form of graphs and dependencies. It has been shown that the derivative-thermal analysis (DTA) is an effective complement of chemical analysis and it has been found that both the increase in temperature and metal holding time have a negative impact on the metallurgical quality of liquid metal. The metallurgical quality can be improved by using proper composition of charge materials and modifiers.

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