|About this Abstract
||2019 TMS Annual Meeting & Exhibition
||Aluminum Alloys, Processing and Characterization
||High Conductivity AlSi7Mg (A356) Alloys – Market, Production, Optimization and Development
||Takeshi Saito, Petter Åsholt, Leonhard Heusler, Thomas Balkenhol, Kjetil R Steen
|On-Site Speaker (Planned)
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. As AlSi7Mg alloys show lower conductivity than pure aluminium, it is important to maximize conductivity in the alloys for suitable applications. There are several metallurgical considerations 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 morphology of Mg-Si hardening precipitates. These are governed by composition, melt treatment prior to casting and heat treatment of the cast components. In this symposium, we will present an overview and recent results of high conductivity AlSi7Mg alloys with regard to 1. market, 2. metallurgical factors, 3. production, and 4. optimization and further development.
||Planned: Light Metals