The thermodynamic properties of manganese silicides

Eremenko, V. N.; Lukashenko, G. M.; Sidorko, V. R.

doi:10.1007/bf00774239

Cited by 5 publications

(7 citation statements)

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“…agreement with the calculated results. The data from Maruyama and Ban-Ya [71] and Wagner and St. Pierre [70] deviates from the other observations. In general, the calculations of ∆μ Fe reasonably agree with the overall activity data.…”

Section: Thermodynamic Properties Of the Liquid Phasementioning

confidence: 61%

“…Also, Nunoue and Kato [44] and Yamamoto et al [42] used a mass spectrometric method to determine the activity at 1,550 °C and 1,600 °C. By vapor-liquid equilibrium, Maruyama and Ban-ya [71] conducted a transportation method, which was used to measure the concentration ratios of the Fe and Sn in the vapor and metal phases to obtain the activity. Eremenko et al [72] measured the vapor pressure with the effusion technique and Federenko and Brovkin [73] and Shiraishi and Bell [74] measured with the transportation method at 1,100-1,300 °C.…”

Section: Thermodynamic Properties Of the Liquid Phasementioning

confidence: 99%

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Thermodynamic modeling of the Fe-Sn system including an experimental re-assessment of the liquid miscibility gap

Park¹,

Bernhard²,

Presoly³

et al. 2023

J Mater Inf

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The usage of low-grade ferrous scrap has increased over decades to decrease CO2 emissions and to produce steel products at a low cost. A serious problem in melting post-consumer scrap material is the accumulation of tramp elements, e.g., Cu and Sn, in the liquid steel. These tramp elements are difficult to remove during conventional steelmaking processes. Sn is considered as one of the most harmful tramp elements because, together with Cu, it sometimes induces the liquid metal embrittlement in high-temperature ferrous processing, e.g., continuous casting and hot rolling. Furthermore, the chemical interaction between Fe and Sn plays an important role in the Sn smelting process. The raw material used in the Sn smelting process is SnO2 (cassiterite), in which Fe3O4 is a gangue in the Sn ore. In the process, the reduction of Fe3O4 is unavoidable, which results in forming a Fe-Sn alloy (hardhead). The recirculation of the hardhead decreases the furnace capacity and increases the energy consumption in the smelting. The need to efficiently recover Sn from secondary resources is therefore inevitable. The CALculation of PHAse Diagrams (CALPHAD) approach helps to predict the equilibrium state of the multicomponent system. Previously reported studies of the Fe-Sn system show inconsistencies in the calculations and the experimental results. Mainly the miscibility gap in the liquid phase was under debate, as experimental data of the phase boundary are scattered. Experimental study and re-optimization of model parameters were carried out with emphasis on the correct shape of the miscibility gap. Three different experimental techniques were employed: differential scanning calorimetry, electromagnetic levitation, and contact angle measurement. The present thermodynamic model has higher accuracy in predicting the solubility of Sn in the body-centered cubic (bcc), compared to previous assessments. This is achieved by re-evaluating the Gibbs energies of the FeSn and FeSn2 compounds and the peritectic reaction related to Fe5Sn3. Also, the inconsistencies related to the miscibility gap around XSn = 0.31-0.81 were resolved. The database developed in the present study can contribute to the development of a large CALPHAD database containing tramp elements.

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Section: Thermodynamic Properties Of the Liquid Phasementioning

confidence: 61%

Section: Thermodynamic Properties Of the Liquid Phasementioning

confidence: 99%

Thermodynamic modeling of the Fe-Sn system including an experimental re-assessment of the liquid miscibility gap

Park¹,

Bernhard²,

Presoly³

et al. 2023

J Mater Inf

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show abstract

“…9, we are showing the enthalpies of formation of Mn alloys with 3d, 4d and 5d transition metals against the atomic number of the element. Besides the current work we are citing measurements by Jacob [53], by Benz [54], by Eremenko et al [55], by Venkataraman and Hajra [56], by Pisch et al [18], by Brewer and Lamoreaux [15] and by Meschel and Kleppa [3]. This graph is noteworthy, for Mn is the only element we found near the center of the periodic table which yields sufficient number of compounds to illustrate a pattern of the enthalpies of formation with respect to the atomic numbers of the transition metal element.…”

Section: Discussionmentioning

confidence: 94%

The standard enthalpies of formation of binary intermetallic compounds of some late 4d and 5d transition metals by high temperature direct synthesis calorimetry

Meschel

Nash

Chen

2010

Journal of Alloys and Compounds

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“…Yeremenko [31][32][33]. As can be seen from the figure, in the high-temperature region, the formation of the V 5 Si 3 phase, which is richer in silicon, is possible; however, during the crystallization of the alloy, when interacting with metal vanadium, it completely turns into share of vanadium in the alloy -(Mo,V) /(Mo,V) 3 Si = 0.9; 1.1; 1.3 and 1.6 for BA (5V) -BA (20V) alloys, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…shows the results of equilibrium thermodynamic simulation in systems (Mo-Mo 3 Si)-V(5-20 ат.%), at the temperature of 500 ∘ C. According to calculations, the ratio of the mass fractions for the metal and silicide phases increases with an increase in the NIOKR-Temperature dependence of the equilibrium composition for the metallic phase of the BA (5V) alloy: a, b calculated according to[23] and[31][32][33], respectively. (E) -Eremenko V.N.…”

mentioning

confidence: 99%