Praštalo, Željko

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Modeling of Impurities Evaporation Reaction Order in Aluminum Alloys by the Parametric Fitting of the Logistic Function

Mitrašinović, Aleksandar; Nešković, Jasmina; Polavder, Svetlana; Petković, Sandra; Praštalo, Željko; Labus, Nebojša; Radosavljević, Milinko

(Basel : MDPI AG, 2024)

TY  - JOUR
AU  - Mitrašinović, Aleksandar
AU  - Nešković, Jasmina
AU  - Polavder, Svetlana
AU  - Petković, Sandra
AU  - Praštalo, Željko
AU  - Labus, Nebojša
AU  - Radosavljević, Milinko
PY  - 2024
UR  - https://dais.sanu.ac.rs/123456789/16380
AB  - Advancements in computer capabilities enable predicting process outcomes that earlier could only be assessed after post-process analyses. In aerospace and automotive industries it is important to predict parts properties before their formation from liquid alloys. In this work, the logistic function was used to predict the evaporation rates of the most detrimental impurities, if the temperature of the liquid aluminum alloy was known. Then, parameters of the logistic function were used to determine the transition points where the reaction order was changing. Samples were heated to 610 °C, 660 °C, 710 °C, and 760 °C for one hour, after which the chemical analyses were performed and evaporation rates were calculated for Cd, Hg, Pb and Zn elements. The pressure inside the encapsulated area was maintained at 0.97 kPa. Whereas parameters that define the evaporation rate increase with the temperature increase, the maximum evaporation rates were deduced from the experimental data and fitted into the logistic function. The elemental evaporation in liquid-aluminum alloys is the best defined by the logistic function, since transitions from the first to zero-order-governed evaporation reactions have nonsymmetrical evaporation rate slopes between the lowest and the highest evaporation rate point.
PB  - Basel : MDPI AG
T2  - Materials
T1  - Modeling of Impurities Evaporation Reaction Order in Aluminum Alloys by the Parametric Fitting of the Logistic Function
SP  - 728
VL  - 17
IS  - 3
DO  - 10.3390/ma17030728
UR  - https://hdl.handle.net/21.15107/rcub_dais_16380
ER  - 
@article{
author = "Mitrašinović, Aleksandar and Nešković, Jasmina and Polavder, Svetlana and Petković, Sandra and Praštalo, Željko and Labus, Nebojša and Radosavljević, Milinko",
year = "2024",
abstract = "Advancements in computer capabilities enable predicting process outcomes that earlier could only be assessed after post-process analyses. In aerospace and automotive industries it is important to predict parts properties before their formation from liquid alloys. In this work, the logistic function was used to predict the evaporation rates of the most detrimental impurities, if the temperature of the liquid aluminum alloy was known. Then, parameters of the logistic function were used to determine the transition points where the reaction order was changing. Samples were heated to 610 °C, 660 °C, 710 °C, and 760 °C for one hour, after which the chemical analyses were performed and evaporation rates were calculated for Cd, Hg, Pb and Zn elements. The pressure inside the encapsulated area was maintained at 0.97 kPa. Whereas parameters that define the evaporation rate increase with the temperature increase, the maximum evaporation rates were deduced from the experimental data and fitted into the logistic function. The elemental evaporation in liquid-aluminum alloys is the best defined by the logistic function, since transitions from the first to zero-order-governed evaporation reactions have nonsymmetrical evaporation rate slopes between the lowest and the highest evaporation rate point.",
publisher = "Basel : MDPI AG",
journal = "Materials",
title = "Modeling of Impurities Evaporation Reaction Order in Aluminum Alloys by the Parametric Fitting of the Logistic Function",
pages = "728",
volume = "17",
number = "3",
doi = "10.3390/ma17030728",
url = "https://hdl.handle.net/21.15107/rcub_dais_16380"
}
Mitrašinović, A., Nešković, J., Polavder, S., Petković, S., Praštalo, Ž., Labus, N.,& Radosavljević, M.. (2024). Modeling of Impurities Evaporation Reaction Order in Aluminum Alloys by the Parametric Fitting of the Logistic Function. in Materials
Basel : MDPI AG., 17(3), 728.
https://doi.org/10.3390/ma17030728
https://hdl.handle.net/21.15107/rcub_dais_16380
Mitrašinović A, Nešković J, Polavder S, Petković S, Praštalo Ž, Labus N, Radosavljević M. Modeling of Impurities Evaporation Reaction Order in Aluminum Alloys by the Parametric Fitting of the Logistic Function. in Materials. 2024;17(3):728.
doi:10.3390/ma17030728
https://hdl.handle.net/21.15107/rcub_dais_16380 .
Mitrašinović, Aleksandar, Nešković, Jasmina, Polavder, Svetlana, Petković, Sandra, Praštalo, Željko, Labus, Nebojša, Radosavljević, Milinko, "Modeling of Impurities Evaporation Reaction Order in Aluminum Alloys by the Parametric Fitting of the Logistic Function" in Materials, 17, no. 3 (2024):728,
https://doi.org/10.3390/ma17030728 .,
https://hdl.handle.net/21.15107/rcub_dais_16380 .