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2019 | OriginalPaper | Chapter

High Conductivity Al-Si-Mg Foundry Alloys—Market, Production, Optimization and Development

Authors : Takeshi Saito, Petter Åsholt, Leonhard Heusler, Thomas Balkenhol, Kjetil R. Steen

Published in: Light Metals 2019

Publisher: Springer International Publishing

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Abstract

AlSi7Mg (A356) alloys are widely used for industrial applications due to their age hardenability and superior castability for components in near net shape. Conductivity—both electrical and thermal—is an important property for some applications in AlSi7Mg alloys. Although AlSi7Mg alloys display lower conductivity than pure aluminium, it is still important to maximize conductivity in the alloys for suitable applications. There are several metallurgical aspects to be considered in order to achieve high conductivity AlSi7Mg alloys—avoiding Ti addition, removal of Ti, V, Zr and Cr as trace elements, modification and spheroidization of Si eutectic microstructure, and formation of Mg–Si hardening precipitates. These are governed by alloy composition, melt treatment prior to casting and heat treatment of the cast components. In this paper, an overview and recent results of high conductivity AlSi7Mg alloys are presented with regard to 1. market, 2. metallurgical factors, 3. production, and 4. optimization and further development.

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previous chapter Elevated-Temperature Low-Cycle Fatigue Behaviors of Al-Si 356 and 319 Foundry Alloys
next chapter Influence of Die Soldering on Die Erosion and Soldering Layer Between Al Melts and Die in Al-Si-Fe Alloys
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Metadata
Title
High Conductivity Al-Si-Mg Foundry Alloys—Market, Production, Optimization and Development
Authors
Takeshi Saito
Petter Åsholt
Leonhard Heusler
Thomas Balkenhol
Kjetil R. Steen
Copyright Year
2019
Book
Light Metals 2019

Print ISBN: 978-3-030-05863-0

Electronic ISBN: 978-3-030-05864-7

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-3-030-05864-7_34

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