Thermophysical properties of Al-based metal matrix composites suitable for automotive brake discs
The present work investigates the effects of Ni, Cu, La, and Ce on the thermophysical properties of aluminium-based metal matrix composites. Transition metals and rare-earth elements were added to improve the mechanical performance of the material to above 420 °C, which is the maximum operating temp...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-03-01
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| Series: | Journal of Alloys and Metallurgical Systems |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949917824000063 |
| _version_ | 1827311040489062400 |
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| author | Lucia Lattanzi Samuel Ayowole Awe |
| author_facet | Lucia Lattanzi Samuel Ayowole Awe |
| author_sort | Lucia Lattanzi |
| collection | DOAJ |
| description | The present work investigates the effects of Ni, Cu, La, and Ce on the thermophysical properties of aluminium-based metal matrix composites. Transition metals and rare-earth elements were added to improve the mechanical performance of the material to above 420 °C, which is the maximum operating temperature of the reference material. In contrast, the addition of alloying elements results in the formation of intermetallic phases, Al3Ni and Al11(La,Ce)3, which, in turn, affect the thermal and physical properties of the base alloy. The goal is to apply the improved composites to automotive brake discs. The addition of alloying elements decreased the thermal conductivity by 20% and increased the stiffness by 90% at temperatures up to 470 °C. When stiffness and thermal conductivity are critical requirements, the addition of these alloying elements represents a valid solution. |
| first_indexed | 2024-03-08T05:12:49Z |
| format | Article |
| id | doaj.art-1e56153e8fe34855928d5b71e2939521 |
| institution | Directory Open Access Journal |
| issn | 2949-9178 |
| language | English |
| last_indexed | 2024-04-24T20:10:40Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Alloys and Metallurgical Systems |
| spelling | doaj.art-1e56153e8fe34855928d5b71e29395212024-03-23T06:26:48ZengElsevierJournal of Alloys and Metallurgical Systems2949-91782024-03-015100059Thermophysical properties of Al-based metal matrix composites suitable for automotive brake discsLucia Lattanzi0Samuel Ayowole Awe1Department of Materials and Manufacturing, School of Engineering, Jönköping University, Gjuterigatan 5, 55318 Jönköping, Sweden; Corresponding author.Automotive Components Floby AB, Aspenäsgatan 2, 52151 Floby, SwedenThe present work investigates the effects of Ni, Cu, La, and Ce on the thermophysical properties of aluminium-based metal matrix composites. Transition metals and rare-earth elements were added to improve the mechanical performance of the material to above 420 °C, which is the maximum operating temperature of the reference material. In contrast, the addition of alloying elements results in the formation of intermetallic phases, Al3Ni and Al11(La,Ce)3, which, in turn, affect the thermal and physical properties of the base alloy. The goal is to apply the improved composites to automotive brake discs. The addition of alloying elements decreased the thermal conductivity by 20% and increased the stiffness by 90% at temperatures up to 470 °C. When stiffness and thermal conductivity are critical requirements, the addition of these alloying elements represents a valid solution.http://www.sciencedirect.com/science/article/pii/S2949917824000063Metal–matrix composites (MMCs)Thermal propertiesCharacterisationMaterial selectionCasting |
| spellingShingle | Lucia Lattanzi Samuel Ayowole Awe Thermophysical properties of Al-based metal matrix composites suitable for automotive brake discs Journal of Alloys and Metallurgical Systems Metal–matrix composites (MMCs) Thermal properties Characterisation Material selection Casting |
| title | Thermophysical properties of Al-based metal matrix composites suitable for automotive brake discs |
| title_full | Thermophysical properties of Al-based metal matrix composites suitable for automotive brake discs |
| title_fullStr | Thermophysical properties of Al-based metal matrix composites suitable for automotive brake discs |
| title_full_unstemmed | Thermophysical properties of Al-based metal matrix composites suitable for automotive brake discs |
| title_short | Thermophysical properties of Al-based metal matrix composites suitable for automotive brake discs |
| title_sort | thermophysical properties of al based metal matrix composites suitable for automotive brake discs |
| topic | Metal–matrix composites (MMCs) Thermal properties Characterisation Material selection Casting |
| url | http://www.sciencedirect.com/science/article/pii/S2949917824000063 |
| work_keys_str_mv | AT lucialattanzi thermophysicalpropertiesofalbasedmetalmatrixcompositessuitableforautomotivebrakediscs AT samuelayowoleawe thermophysicalpropertiesofalbasedmetalmatrixcompositessuitableforautomotivebrakediscs |