| Title： | Effect of Ti on microstructure and properties of electromagnetic stirred Al-18wt.%Mg2Si alloy | |
| Author： | *Yu-yan Ren1, 2, Sheng-yuan Chen3, **Tong-yu Liu3, Song Zhang3, and Ying-min Li3 | |
| Address： | 1. Faculty of Electromechanical Information,Weifang University of Science and Technology, Shouguang 262700, Shandong, China; 2. Weifang Key Laboratory of High-temperature Materials and Single Crystal Components Fabrication Technology for Advanced Engine System, Weifang 262700, Shandong, China; 3. School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China | |
| Key words： | Al-18wt.%Mg2Si alloy; Ti modification; electromagnetic stirring; mechanical property | |
| CLC Nmuber： | TG146.21 | |
| Document Code： | A | |
| Article ID： | 1672-6421(2023)01-078-05 | |
| Abstract： |
By adding different amounts of Ti into the electromagnetic stirred Al-18wt.%Mg2Si alloy, the effect of Ti element on the microstructure and mechanical properties of the alloy was studied. The experimental results show that the microstructure is refined after modification with Ti, which is related to the heterogeneous nucleation of TiAl3 particles on the α-Al matrix. With the increase of Ti content and holding time after stirring, the primary Mg2Si phase is refined firstly and then coarsened, and correspondingly, the mechanical properties of the alloy show a trend of increasing at first and then decreasing. When the addition of Ti is 0.5wt.% and the holding time is about 20 min, the refinement effect of primary Mg2Si phase is the most significant and the mechanical properties of the alloy are optimal.
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