Evolution of the Fe-Rich Phases in Recycled AlSi9Cu3 Cast Alloy during Solution Treatment
Using recycled aluminium cast alloys is profitable in many aspects. Requiring only 5% of the energy to produce secondary metal as compared to primary metal and generates only 4% of the CO2 emissions, the recycling of aluminium is therefore beneficial of both environmental and economical point of vie...
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| Language: | English |
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University of Žilina
2010-12-01
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| Series: | Communications |
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| Online Access: | https://komunikacie.uniza.sk/artkey/csl-201004-0016_evolution-of-the-fe-rich-phases-in-recycled-alsi9cu3-cast-alloy-during-solution-treatment.php |
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| author | Eva Tillova Maria Chalupova Lenka Hurtalova |
| author_facet | Eva Tillova Maria Chalupova Lenka Hurtalova |
| author_sort | Eva Tillova |
| collection | DOAJ |
| description | Using recycled aluminium cast alloys is profitable in many aspects. Requiring only 5% of the energy to produce secondary metal as compared to primary metal and generates only 4% of the CO2 emissions, the recycling of aluminium is therefore beneficial of both environmental and economical point of view. AlSi9Cu3 is a very frequently employed die-casting alloy. It is used in almost all fields of pressure die casting, especially in the fabrication various motor mounts, pistons, cylinder heads, heat exchangers, air conditioners or gearings. Al-Si-Cu alloys usually contain Cu and sometimes Mg as the main alloying elements, together with various impurities such as Fe, Mn or Cr. Presence of the Fe impurity enables the crystallization of brittles needles Al5FeSi during solidification, even thought the Fe content is extremely low in a melt, and its presence severely lowers the dynamic fracture toughness of the alloy. Alloying elements such are Mn, Cr, Mo and Be have beenused to change the morphology of the Al5 FeSi needles and Al(FeMnMg)Si skeleton (or "Chinese script") phases.The present study is a part of larger research project, which was conducted to investigate and to provide a better understanding of the solution annealing on the morphology of Fe-rich intermetallic phases in cast Al-Si-Cu alloys. The Fe-rich changes of typical specimens under different solution heat treatment condition were examined using an optical and scanning electron microscope (SEM). The results show that optimal solution treatment causes increasing of mechanical properties, the change of Si-morphology and reduction iron rich phases. |
| first_indexed | 2024-04-09T18:04:28Z |
| format | Article |
| id | doaj.art-c73235efee614959a6d871d26aaedcce |
| institution | Directory Open Access Journal |
| issn | 1335-4205 2585-7878 |
| language | English |
| last_indexed | 2024-04-09T18:04:28Z |
| publishDate | 2010-12-01 |
| publisher | University of Žilina |
| record_format | Article |
| series | Communications |
| spelling | doaj.art-c73235efee614959a6d871d26aaedcce2023-04-14T06:30:18ZengUniversity of ŽilinaCommunications1335-42052585-78782010-12-011249510110.26552/com.C.2010.4.95-101csl-201004-0016Evolution of the Fe-Rich Phases in Recycled AlSi9Cu3 Cast Alloy during Solution TreatmentEva Tillova0Maria Chalupova1Lenka Hurtalova2Department of Material Engineering, Faculty of Mechanical Engineering, University of Zilina, SlovakiaDepartment of Material Engineering, Faculty of Mechanical Engineering, University of Zilina, SlovakiaDepartment of Material Engineering, Faculty of Mechanical Engineering, University of Zilina, SlovakiaUsing recycled aluminium cast alloys is profitable in many aspects. Requiring only 5% of the energy to produce secondary metal as compared to primary metal and generates only 4% of the CO2 emissions, the recycling of aluminium is therefore beneficial of both environmental and economical point of view. AlSi9Cu3 is a very frequently employed die-casting alloy. It is used in almost all fields of pressure die casting, especially in the fabrication various motor mounts, pistons, cylinder heads, heat exchangers, air conditioners or gearings. Al-Si-Cu alloys usually contain Cu and sometimes Mg as the main alloying elements, together with various impurities such as Fe, Mn or Cr. Presence of the Fe impurity enables the crystallization of brittles needles Al5FeSi during solidification, even thought the Fe content is extremely low in a melt, and its presence severely lowers the dynamic fracture toughness of the alloy. Alloying elements such are Mn, Cr, Mo and Be have beenused to change the morphology of the Al5 FeSi needles and Al(FeMnMg)Si skeleton (or "Chinese script") phases.The present study is a part of larger research project, which was conducted to investigate and to provide a better understanding of the solution annealing on the morphology of Fe-rich intermetallic phases in cast Al-Si-Cu alloys. The Fe-rich changes of typical specimens under different solution heat treatment condition were examined using an optical and scanning electron microscope (SEM). The results show that optimal solution treatment causes increasing of mechanical properties, the change of Si-morphology and reduction iron rich phases.https://komunikacie.uniza.sk/artkey/csl-201004-0016_evolution-of-the-fe-rich-phases-in-recycled-alsi9cu3-cast-alloy-during-solution-treatment.phprecycled al-si cast alloyfe-rich intermetallic phasessolution treatment |
| spellingShingle | Eva Tillova Maria Chalupova Lenka Hurtalova Evolution of the Fe-Rich Phases in Recycled AlSi9Cu3 Cast Alloy during Solution Treatment Communications recycled al-si cast alloy fe-rich intermetallic phases solution treatment |
| title | Evolution of the Fe-Rich Phases in Recycled AlSi9Cu3 Cast Alloy during Solution Treatment |
| title_full | Evolution of the Fe-Rich Phases in Recycled AlSi9Cu3 Cast Alloy during Solution Treatment |
| title_fullStr | Evolution of the Fe-Rich Phases in Recycled AlSi9Cu3 Cast Alloy during Solution Treatment |
| title_full_unstemmed | Evolution of the Fe-Rich Phases in Recycled AlSi9Cu3 Cast Alloy during Solution Treatment |
| title_short | Evolution of the Fe-Rich Phases in Recycled AlSi9Cu3 Cast Alloy during Solution Treatment |
| title_sort | evolution of the fe rich phases in recycled alsi9cu3 cast alloy during solution treatment |
| topic | recycled al-si cast alloy fe-rich intermetallic phases solution treatment |
| url | https://komunikacie.uniza.sk/artkey/csl-201004-0016_evolution-of-the-fe-rich-phases-in-recycled-alsi9cu3-cast-alloy-during-solution-treatment.php |
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