A Novel Approach of Optimum Time Interval Estimation for Al-7.5Si/Al-18Si Liquid–Liquid Bimetal Casting in Sand and Metallic Moulds
This work describes a novel approach for Al-7.5Si/Al-18Si liquid–liquid bimetal casting in sand and metallic moulds. The aim of the work is to facilitate and develop a simple procedure to produce an Al-7.5Si/Al-18Si bimetallic material with a smooth gradient interface structure. The procedure involv...
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MDPI AG
2023-04-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/8/3004 |
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| author | Naglaa Fathy Mohamed Ramadan Khalid M. Hafez Fahad Abdulaziz Badreddine Ayadi Abdulaziz S. Alghamdi |
| author_facet | Naglaa Fathy Mohamed Ramadan Khalid M. Hafez Fahad Abdulaziz Badreddine Ayadi Abdulaziz S. Alghamdi |
| author_sort | Naglaa Fathy |
| collection | DOAJ |
| description | This work describes a novel approach for Al-7.5Si/Al-18Si liquid–liquid bimetal casting in sand and metallic moulds. The aim of the work is to facilitate and develop a simple procedure to produce an Al-7.5Si/Al-18Si bimetallic material with a smooth gradient interface structure. The procedure involves the theoretical calculation of total solidification time (TST) of the first liquid metal (M1), pouring the liquid metal (M1), and allowing it to solidify; then, before complete solidification, the second liquid metal (M2) is introduced into the mould. This novel approach has been proven to produce Al-7.5Si/Al-18Si bimetal materials using liquid–liquid casting. The optimum time interval of Al-7.5Si/Al-18Si bimetal casting with modulus of cast M<sub>c</sub> ≤ 1 was estimated based on subtracting 5–15 s or 1–5 s from TST of M1 for sand and metallic moulds, respectively. Future work will involve determining the appropriate time interval range for castings having modulus ≥ 1 using the current approach. |
| first_indexed | 2024-03-11T04:47:40Z |
| format | Article |
| id | doaj.art-79f739ccd40b42bebaab5017c77290bc |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T04:47:40Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-79f739ccd40b42bebaab5017c77290bc2023-11-17T20:11:42ZengMDPI AGMaterials1996-19442023-04-01168300410.3390/ma16083004A Novel Approach of Optimum Time Interval Estimation for Al-7.5Si/Al-18Si Liquid–Liquid Bimetal Casting in Sand and Metallic MouldsNaglaa Fathy0Mohamed Ramadan1Khalid M. Hafez2Fahad Abdulaziz3Badreddine Ayadi4Abdulaziz S. Alghamdi5Department of Physics, College of Science, University of Ha’il, Hail P.O. Box 2440, Saudi ArabiaCollege of Engineering, University of Ha’il, Hail P.O. Box 2440, Saudi ArabiaCentral Metallurgical Research and Development Institute (CMRDI), P.O. Box 87, Helwan 11421, EgyptDepartment of Chemistry, College of Science, University of Ha’il, Hail P.O. Box 2440, Saudi ArabiaCollege of Engineering, University of Ha’il, Hail P.O. Box 2440, Saudi ArabiaCollege of Engineering, University of Ha’il, Hail P.O. Box 2440, Saudi ArabiaThis work describes a novel approach for Al-7.5Si/Al-18Si liquid–liquid bimetal casting in sand and metallic moulds. The aim of the work is to facilitate and develop a simple procedure to produce an Al-7.5Si/Al-18Si bimetallic material with a smooth gradient interface structure. The procedure involves the theoretical calculation of total solidification time (TST) of the first liquid metal (M1), pouring the liquid metal (M1), and allowing it to solidify; then, before complete solidification, the second liquid metal (M2) is introduced into the mould. This novel approach has been proven to produce Al-7.5Si/Al-18Si bimetal materials using liquid–liquid casting. The optimum time interval of Al-7.5Si/Al-18Si bimetal casting with modulus of cast M<sub>c</sub> ≤ 1 was estimated based on subtracting 5–15 s or 1–5 s from TST of M1 for sand and metallic moulds, respectively. Future work will involve determining the appropriate time interval range for castings having modulus ≥ 1 using the current approach.https://www.mdpi.com/1996-1944/16/8/3004time intervalliquid–liquidbimetal castingsandmetallicmoulds |
| spellingShingle | Naglaa Fathy Mohamed Ramadan Khalid M. Hafez Fahad Abdulaziz Badreddine Ayadi Abdulaziz S. Alghamdi A Novel Approach of Optimum Time Interval Estimation for Al-7.5Si/Al-18Si Liquid–Liquid Bimetal Casting in Sand and Metallic Moulds Materials time interval liquid–liquid bimetal casting sand metallic moulds |
| title | A Novel Approach of Optimum Time Interval Estimation for Al-7.5Si/Al-18Si Liquid–Liquid Bimetal Casting in Sand and Metallic Moulds |
| title_full | A Novel Approach of Optimum Time Interval Estimation for Al-7.5Si/Al-18Si Liquid–Liquid Bimetal Casting in Sand and Metallic Moulds |
| title_fullStr | A Novel Approach of Optimum Time Interval Estimation for Al-7.5Si/Al-18Si Liquid–Liquid Bimetal Casting in Sand and Metallic Moulds |
| title_full_unstemmed | A Novel Approach of Optimum Time Interval Estimation for Al-7.5Si/Al-18Si Liquid–Liquid Bimetal Casting in Sand and Metallic Moulds |
| title_short | A Novel Approach of Optimum Time Interval Estimation for Al-7.5Si/Al-18Si Liquid–Liquid Bimetal Casting in Sand and Metallic Moulds |
| title_sort | novel approach of optimum time interval estimation for al 7 5si al 18si liquid liquid bimetal casting in sand and metallic moulds |
| topic | time interval liquid–liquid bimetal casting sand metallic moulds |
| url | https://www.mdpi.com/1996-1944/16/8/3004 |
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