|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Aluminum Alloys, Processing and Characterization
||I-12: Fatigue and Tensile Properties of Hypoeutectic Al-Si-Mg Alloys with Excess Mg Contents
||Young-Ok Yoon, Su-Yeon Lee, Seong-Ho Ha, Bong-Hwan Kim, Hyun-Kyu Lim, Shae K. Kim
|On-Site Speaker (Planned)
Hypoeutectic Al-Si-Mg casting alloys are widely used in the automotive and aerospace industries as structural components due to an excellent combination of castability and mechanical properties. Mg addition into Al-Si alloys leads to significant age-hardening behavior through Mg2Si precipitates, and offers improved strength. Typical Al-Si-Mg casting alloys have limited Mg contents of about 0.3 mass% and the maximum value of 0.7 mass% in the case of A357 alloy. However, most of the work on hypoeutectic Al-Si alloys containing Mg are limited to 0.6wt%. In the present study, fatigue and tensile properties of Al-Si-Mg alloys Mg-enriched up to 0.8 mass% were investigated. Mg+Al2Ca master alloy as an alloying element of Mg was employed for the eutectic Si modification, control of Mg loss and entrainment of Mg-based oxide inclusion occurred during melting process.
||Planned: Light Metals