Quantification of Modifiers Fading during Melt Holding in the Aluminum Casting Furnace
Strontium (Sr) and sodium (Na) are the most used modifiers in the aluminum casting industry. Both lose their concentration (fade) during holding in the melting furnace. Three types of chemical reactions in the melt may cause modifier fading: vaporizing, oxidizing, or reacting with some other element...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/13/2/191 |
| _version_ | 1797621575685505024 |
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| author | Mile Djurdjevic Srecko Manasijevic Slavko Smiljanic Marko Ristic |
| author_facet | Mile Djurdjevic Srecko Manasijevic Slavko Smiljanic Marko Ristic |
| author_sort | Mile Djurdjevic |
| collection | DOAJ |
| description | Strontium (Sr) and sodium (Na) are the most used modifiers in the aluminum casting industry. Both lose their concentration (fade) during holding in the melting furnace. Three types of chemical reactions in the melt may cause modifier fading: vaporizing, oxidizing, or reacting with some other elements from the melt. Due to Na and Sr’s very low vapor pressure, their vaporization from the aluminum melt was excluded as a reason for the modifiers’ fading. Oxidation looks like the major chemical reaction that causes the fading of Na and Sr from an aluminum melt. The present paper aimed to quantify the fading of Na and Sr in an Al–Si–Cu–Mg alloy. The loss of modifiers (Na and Sr) during melt holding in a furnace can be analytically quantified using equations taken from the literature. The calculated surface reaction rate constant (<i>k</i><sub>s</sub>) can estimate the modifier’s loss during melt holding in industrial and laboratory furnaces. |
| first_indexed | 2024-03-11T08:59:00Z |
| format | Article |
| id | doaj.art-751b700186dc46e0a3f7f7c23d2e0924 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-11T08:59:00Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-751b700186dc46e0a3f7f7c23d2e09242023-11-16T19:54:43ZengMDPI AGCrystals2073-43522023-01-0113219110.3390/cryst13020191Quantification of Modifiers Fading during Melt Holding in the Aluminum Casting FurnaceMile Djurdjevic0Srecko Manasijevic1Slavko Smiljanic2Marko Ristic3Nemak, 4030 Linz, AustriaLola Institute Ltd., 11000 Belgrade, SerbiaFaculty of Technology Zvornik, University of East Sarajevo, 75400 Zvornik, Bosnia and HerzegovinaInstitute Mihailo Pupin, 11000 Belgrade, SerbiaStrontium (Sr) and sodium (Na) are the most used modifiers in the aluminum casting industry. Both lose their concentration (fade) during holding in the melting furnace. Three types of chemical reactions in the melt may cause modifier fading: vaporizing, oxidizing, or reacting with some other elements from the melt. Due to Na and Sr’s very low vapor pressure, their vaporization from the aluminum melt was excluded as a reason for the modifiers’ fading. Oxidation looks like the major chemical reaction that causes the fading of Na and Sr from an aluminum melt. The present paper aimed to quantify the fading of Na and Sr in an Al–Si–Cu–Mg alloy. The loss of modifiers (Na and Sr) during melt holding in a furnace can be analytically quantified using equations taken from the literature. The calculated surface reaction rate constant (<i>k</i><sub>s</sub>) can estimate the modifier’s loss during melt holding in industrial and laboratory furnaces.https://www.mdpi.com/2073-4352/13/2/191modifierfadingAlSiCuMg alloysloss rate constantsurface reaction rate constant |
| spellingShingle | Mile Djurdjevic Srecko Manasijevic Slavko Smiljanic Marko Ristic Quantification of Modifiers Fading during Melt Holding in the Aluminum Casting Furnace Crystals modifier fading AlSiCuMg alloys loss rate constant surface reaction rate constant |
| title | Quantification of Modifiers Fading during Melt Holding in the Aluminum Casting Furnace |
| title_full | Quantification of Modifiers Fading during Melt Holding in the Aluminum Casting Furnace |
| title_fullStr | Quantification of Modifiers Fading during Melt Holding in the Aluminum Casting Furnace |
| title_full_unstemmed | Quantification of Modifiers Fading during Melt Holding in the Aluminum Casting Furnace |
| title_short | Quantification of Modifiers Fading during Melt Holding in the Aluminum Casting Furnace |
| title_sort | quantification of modifiers fading during melt holding in the aluminum casting furnace |
| topic | modifier fading AlSiCuMg alloys loss rate constant surface reaction rate constant |
| url | https://www.mdpi.com/2073-4352/13/2/191 |
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