Ripening of the AlSi9Cu3ZnMg alloy - mechanical and microstructural characterisation
Recovered aluminium has poor mechanical properties, to improve them considerably, three main factors have been considered. The first is to add four very low-density elements to the recovered aluminium, including 9% silicon, 3% copper and some traces of zinc and magnesium less than 1% (≤ 1% Zinc, ≤ 1...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Mouloud Mammeri University of Tizi-Ouzou
2022-11-01
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| Series: | Journal of Materials and Engineering Structures |
| Subjects: | |
| Online Access: | https://revue.ummto.dz/index.php/JMES/article/view/3042 |
| _version_ | 1828115567781871616 |
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| author | Ahmed HAKEM Farid ASMA |
| author_facet | Ahmed HAKEM Farid ASMA |
| author_sort | Ahmed HAKEM |
| collection | DOAJ |
| description | Recovered aluminium has poor mechanical properties, to improve them considerably, three main factors have been considered. The first is to add four very low-density elements to the recovered aluminium, including 9% silicon, 3% copper and some traces of zinc and magnesium less than 1% (≤ 1% Zinc, ≤ 1% Mg), which produces the non-standardized casting alloy AlSi9Cu3ZnMg. Then, in order to obtain a fine microstructure, a gravity die-casting is carried out in the as-cast state noted: F. Finally, to further increase the strength of the F-state and essentially obtain high elasticity stresses, high rigidity modulus with low deformations, the AlSi9Cu3ZnMg alloy composed of 60% scrap and 40% new ingots, is subjected to structural hardening by varying the ripening time for 24 hours in increments of 2 hours, thus giving rise to precipitates of various kinds which impede the dislocations sliding.
The results thus obtained show that the cured state for 12 hours (M12h) is a good compromise between good strength and maximum ductility. |
| first_indexed | 2024-04-11T12:42:29Z |
| format | Article |
| id | doaj.art-c9c961014f9e462585750b514ca1a707 |
| institution | Directory Open Access Journal |
| issn | 2170-127X |
| language | English |
| last_indexed | 2024-04-11T12:42:29Z |
| publishDate | 2022-11-01 |
| publisher | Mouloud Mammeri University of Tizi-Ouzou |
| record_format | Article |
| series | Journal of Materials and Engineering Structures |
| spelling | doaj.art-c9c961014f9e462585750b514ca1a7072022-12-22T04:23:28ZengMouloud Mammeri University of Tizi-OuzouJournal of Materials and Engineering Structures2170-127X2022-11-01932772902051Ripening of the AlSi9Cu3ZnMg alloy - mechanical and microstructural characterisationAhmed HAKEM0Farid ASMA1Département de Génie Mécanique, Faculté de Génie de la Construction, Université Mouloud Mammeri de Tizi-Ouzou, 15000.Algérie.Laboratory of Elaboration, Characterisation of Materials and Modelisation , Mouloud Mammeri University, Tizi-Ouzou, AlgeriaRecovered aluminium has poor mechanical properties, to improve them considerably, three main factors have been considered. The first is to add four very low-density elements to the recovered aluminium, including 9% silicon, 3% copper and some traces of zinc and magnesium less than 1% (≤ 1% Zinc, ≤ 1% Mg), which produces the non-standardized casting alloy AlSi9Cu3ZnMg. Then, in order to obtain a fine microstructure, a gravity die-casting is carried out in the as-cast state noted: F. Finally, to further increase the strength of the F-state and essentially obtain high elasticity stresses, high rigidity modulus with low deformations, the AlSi9Cu3ZnMg alloy composed of 60% scrap and 40% new ingots, is subjected to structural hardening by varying the ripening time for 24 hours in increments of 2 hours, thus giving rise to precipitates of various kinds which impede the dislocations sliding. The results thus obtained show that the cured state for 12 hours (M12h) is a good compromise between good strength and maximum ductility.https://revue.ummto.dz/index.php/JMES/article/view/3042aluminium alloys, ripening, hardening, microstructure. |
| spellingShingle | Ahmed HAKEM Farid ASMA Ripening of the AlSi9Cu3ZnMg alloy - mechanical and microstructural characterisation Journal of Materials and Engineering Structures aluminium alloys, ripening, hardening, microstructure. |
| title | Ripening of the AlSi9Cu3ZnMg alloy - mechanical and microstructural characterisation |
| title_full | Ripening of the AlSi9Cu3ZnMg alloy - mechanical and microstructural characterisation |
| title_fullStr | Ripening of the AlSi9Cu3ZnMg alloy - mechanical and microstructural characterisation |
| title_full_unstemmed | Ripening of the AlSi9Cu3ZnMg alloy - mechanical and microstructural characterisation |
| title_short | Ripening of the AlSi9Cu3ZnMg alloy - mechanical and microstructural characterisation |
| title_sort | ripening of the alsi9cu3znmg alloy mechanical and microstructural characterisation |
| topic | aluminium alloys, ripening, hardening, microstructure. |
| url | https://revue.ummto.dz/index.php/JMES/article/view/3042 |
| work_keys_str_mv | AT ahmedhakem ripeningofthealsi9cu3znmgalloymechanicalandmicrostructuralcharacterisation AT faridasma ripeningofthealsi9cu3znmgalloymechanicalandmicrostructuralcharacterisation |