Modeling of Impurities Evaporation Reaction Order in Aluminum Alloys by the Parametric Fitting of the Logistic Function
Аутори
Mitrašinović, AleksandarNešković, Jasmina
Polavder, Svetlana
Petković, Sandra
Praštalo, Željko
Labus, Nebojša
Radosavljević, Milinko
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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 int...o 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.
Кључне речи:
evaporation / high temperature / pressure / aluminum / logistic function / modellingИзвор:
Materials, 2024, 17, 3, 728-Издавач:
- Basel : MDPI AG
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200175 (Институт техничких наука САНУ, Београд) (RS-MESTD-inst-2020-200175)
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - 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 .