|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||2016 Technical Division Student Poster Competition
||SPG-28: On the Microstructure and Properties of Supersaturated Al-Zn-Mg Alloy Fabricated by Friction Stir Processing
||Qu Liu, Gaoqiang Chen, Qingyu Shi
|On-Site Speaker (Planned)
Highly non-equilibrium thermal-mechanical conditions could significantly improve the structure and properties of materials. New types of materials such as amorphous alloys and nanostructured materials with excellent properties have been achieved under non-equilibrium processing technologies. In this study, friction stir processing (FSP) was applied to fabricated supersaturated aluminum based alloys. Microstructural examinations showed the formation of supersaturated substitutional solid solution Al-Zn-Mg alloy in which successive solutes about 31.77wt% Zn and 9.56wt% Mg were dissolved. It indicated that the addition of Mg element could stabilize the supersaturated solid solution of Al-Zn alloy. Without dissolution of magnesium, solute Zn precipitated inside the grains in processed Al-Zn alloy. Meanwhile, Both the processed Al-Zn-Mg and Al-Zn alloys exhibited higher micro-hardness.
||Definite: None Selected