Investigation of the Microstructure and Properties of Aluminum–Copper Compounds Fabricated by the High-Pressure Die Casting Process

The material combination of aluminum and copper is increasingly coming into focus, especially for electrical contact applications. Investigations of different casting processes show that a significant influence for the formation of a material bond is the thermal impact. For high-pressure die casting...

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Main Authors: Nane Nolte, Thomas Lukasczyk, Bernd Mayer
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/12/8/1314
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author Nane Nolte
Thomas Lukasczyk
Bernd Mayer
author_facet Nane Nolte
Thomas Lukasczyk
Bernd Mayer
author_sort Nane Nolte
collection DOAJ
description The material combination of aluminum and copper is increasingly coming into focus, especially for electrical contact applications. Investigations of different casting processes show that a significant influence for the formation of a material bond is the thermal impact. For high-pressure die casting (HPDC) processes, the impact is quite low, e.g., due to short cycle times. Despite the high efficiency of this technology, currently there are hardly any investigations in this respect. So, the technology was used in this study to produce aluminum–copper compounds and analyze interfacial layers by means of SEM images and EDX measurements. Furthermore, the mechanical and electrical properties of the compounds were determined by means of tensile shear tests and measurements of the electrical conductivity. By modifying specimen geometry, the thermal impact could be increased and, thus, enhanced compound properties were achieved. Overall, compounds of sufficiently high mechanical strength, as well as electrical conductivity, could be produced by HPDC processes, demonstrating the high technical and economic potential of this casting technique.
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spelling doaj.art-71d1269e9fa24c0486da6886413ce0002023-11-30T21:59:09ZengMDPI AGMetals2075-47012022-08-01128131410.3390/met12081314Investigation of the Microstructure and Properties of Aluminum–Copper Compounds Fabricated by the High-Pressure Die Casting ProcessNane Nolte0Thomas Lukasczyk1Bernd Mayer2Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Wiener Str. 12, 28359 Bremen, GermanyFraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Wiener Str. 12, 28359 Bremen, GermanyFraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Wiener Str. 12, 28359 Bremen, GermanyThe material combination of aluminum and copper is increasingly coming into focus, especially for electrical contact applications. Investigations of different casting processes show that a significant influence for the formation of a material bond is the thermal impact. For high-pressure die casting (HPDC) processes, the impact is quite low, e.g., due to short cycle times. Despite the high efficiency of this technology, currently there are hardly any investigations in this respect. So, the technology was used in this study to produce aluminum–copper compounds and analyze interfacial layers by means of SEM images and EDX measurements. Furthermore, the mechanical and electrical properties of the compounds were determined by means of tensile shear tests and measurements of the electrical conductivity. By modifying specimen geometry, the thermal impact could be increased and, thus, enhanced compound properties were achieved. Overall, compounds of sufficiently high mechanical strength, as well as electrical conductivity, could be produced by HPDC processes, demonstrating the high technical and economic potential of this casting technique.https://www.mdpi.com/2075-4701/12/8/1314compound castingintermetalliccomposite castingaluminumcopperelectrical conductivity
spellingShingle Nane Nolte
Thomas Lukasczyk
Bernd Mayer
Investigation of the Microstructure and Properties of Aluminum–Copper Compounds Fabricated by the High-Pressure Die Casting Process
Metals
compound casting
intermetallic
composite casting
aluminum
copper
electrical conductivity
title Investigation of the Microstructure and Properties of Aluminum–Copper Compounds Fabricated by the High-Pressure Die Casting Process
title_full Investigation of the Microstructure and Properties of Aluminum–Copper Compounds Fabricated by the High-Pressure Die Casting Process
title_fullStr Investigation of the Microstructure and Properties of Aluminum–Copper Compounds Fabricated by the High-Pressure Die Casting Process
title_full_unstemmed Investigation of the Microstructure and Properties of Aluminum–Copper Compounds Fabricated by the High-Pressure Die Casting Process
title_short Investigation of the Microstructure and Properties of Aluminum–Copper Compounds Fabricated by the High-Pressure Die Casting Process
title_sort investigation of the microstructure and properties of aluminum copper compounds fabricated by the high pressure die casting process
topic compound casting
intermetallic
composite casting
aluminum
copper
electrical conductivity
url https://www.mdpi.com/2075-4701/12/8/1314
work_keys_str_mv AT nanenolte investigationofthemicrostructureandpropertiesofaluminumcoppercompoundsfabricatedbythehighpressurediecastingprocess
AT thomaslukasczyk investigationofthemicrostructureandpropertiesofaluminumcoppercompoundsfabricatedbythehighpressurediecastingprocess
AT berndmayer investigationofthemicrostructureandpropertiesofaluminumcoppercompoundsfabricatedbythehighpressurediecastingprocess