@ARTICLE{Ha_Seong-Ho_Characterization_2021,
 author={Ha, Seong-Ho and Shin, Young-Chul and Kim, Bong-Hwan and Yoon, Young-Ok and Lim, Hyun-Kyu and Lim, Sung-Hwan and Kim, Shae K.},
 volume={vol. 66},
 number={No 4},
 journal={Archives of Metallurgy and Materials},
 pages={959-962},
 howpublished={online},
 year={2021},
 publisher={Institute of Metallurgy and Materials Science of Polish Academy of Sciences},
 publisher={Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences},
 abstract={In this study, precipitation of Ca in Al-Mg alloys containing a trace of Ca during homogenization was investigated using a transmission electron microscope (TEM) and calculated phase diagrams. TEM result indicated that the Ca-based particles found in the examined sample are Ca7Mg7.5Si14. From the calculation of Scheil-Gulliver cooling, it was found that the Ca was formed as Al4Ca and C36 laves phases with Mg2Si and Al13Fe4 from other impurities phase during solidification. No Ca-Mg-Si ternary phase existed at the homogenization temperature in the calculated phase diagram. From the phase diagram of Al-Al4Ca-Mg2Si three-phase isothermal at 490℃, it was shown that Ca7Mg6Si14 phase co-exists with Al, Mg2Si and Al4Ca in the largest region and with only Al and Mg2Si in Al4Ca-poor regions. It was thought that the Ca7Mg6Si14 ternary phase was formed by the interaction between Mg2Si and Al4Ca considering that the segregation can occur throughout the entire microstructures.},
 type={Article},
 title={Characterization of Ca Precipitation in Al-Mg Alloys Containing a Trace of Ca During Homogenization},
 URL={http://ochroma.man.poznan.pl/Content/119278/PDF-MASTER/AMM-2021-4-07-Seong-Ho%20Ha.pdf},
 doi={10.24425/amm.2021.136405},
 keywords={Al-Mg system, precipitation, Mg+Al2Ca mater alloy, Transmission electron microscope, Phase diagram},
}