Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/101521
Title: Surface Tension and Density of Fe–Mn Melts
Authors: Sinitsin, N. I.
Chikova, O. A.
V’yukhin, V. V.
Issue Date: 2020
Publisher: Pleiades Publishing
Citation: Sinitsin N. I. Surface Tension and Density of Fe–Mn Melts / N. I. Sinitsin, O. A. Chikova, V. V. V’yukhin. — DOI 10.3103/S0967091220010118 // Steel in Translation. — 2020. — Vol. 50. — Iss. 1. — P. 16-21.
Abstract: Abstract: The article presents original experimental data on surface tension of the Fe100 – xMnx (x = 4–13 wt %) melts. Surface tension and density of the melt were measured by the sessile drop method at heating from the liquidus temperature to 1780°C and subsequent sample cooling in the atmosphere of high-purity helium. Temperature and concentration dependences of surface tension and density of Fe–Mn melts were plotted. Manganese is a surface-active substance in iron melt. The value of surface tension coefficient of Fe–Mn melts decreases as Mn content increases. Experimental data on the surface tension of Fe–Mn melts is consistent with the theoretical dependences (the Pavlov–Popel’ equation and the Shishkovsky equation). During the investigation of Fe–Mn melt microheterogenity, correlation between the values of kinematic viscosity, surface tension, and density is revealed. Fluidity dependence of Fe–Mn melts on their density in the cooling mode has a linear character which indicates satisfaction of the Bachinskii law. Discrepancy in the melt viscosity ratios to the surface tension coefficient obtained from the experimental data and from the empirical formula is discovered. Using the experimental data on viscosity and surface tension of Fe–Mn melts, the entropy change in the melt’s bulk and the change in the melt’s surface entropy, respectively, are studied. The surface entropy and the bulk entropy in the melt decrease in their absolute value with its increasing Mn content. From the study results, it is concluded that there is no destruction of the microheterogeneous structure of Fe100 – xMnx (x = 4–13 wt %) melts when heated up to 1780°C. © 2020, Allerton Press, Inc.
Keywords: BACHINSKII EQUATION
DENSITY
FE–MN MELTS
KINEMATIC VISCOSITY
MICROHETEROGENEITY
SURFACE ENTROPY
SURFACE TENSION
VISCOUS FLOW ENTROPY
ABSTRACTING
ENTROPY
VISCOSITY
CONCENTRATION DEPENDENCE
EMPIRICAL FORMULAS
LIQUIDUS TEMPERATURE
MICRO-HETEROGENEOUS
SESSILE DROP METHOD
SURFACE ACTIVE SUBSTANCES
SURFACE ENTROPIES
SURFACE TENSION COEFFICIENT
SURFACE TENSION
URI: http://hdl.handle.net/10995/101521
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85085506697
PURE ID: 12928758
67709637-41b8-47cf-9a35-ccab04030c83
ISSN: 9670912
DOI: 10.3103/S0967091220010118
metadata.dc.description.sponsorship: The reported study was funded by Russian Foundation for Basic Research, project no. 19-33-90198.
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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