|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Cast Shop Technology
||Nitridation Reaction of Aluminum and Magnesium in 5XXX Series Aluminum Alloy
||Yu Matsui, Masaru Morobayashi, Hirohisa Shiomi, Koichi Takahashi
|On-Site Speaker (Planned)
The purpose of this study is to investigate the origin of nitride inclusions in the aluminum casting process. The authors surveyed the behavior of aluminum and magnesium under several environmental conditions. The results showed that the oxidation and nitridation reactions during the melting process are key factors for producing nitride inclusions. The authors determined the forming conditions of AlN and Mg3N2, and established a method of producing them in liquid aluminum. Additionally, the standard Gibbs free energies of formation of several oxides and nitrides were calculated. The experimental results were consistent with the thermodynamic stability. The method of preventing the formation of nitride inclusions was both experimentally and theoretically derived.
||Planned: Light Metals