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.
Article PDF
Similar content being viewed by others
References
Qin Q D. Study on microstructures and properties of Mg2Si/Al composites. Changchun: Jilin University, 2008. (In Chinese)
Gao Y J, Li Y W. Analysis of valence electronic structures of Al-Mg-Si alloy. Journal of Changde Teachers University, 2003, 15(4): 9–11. (In Chinese)
Mohanty P S, Gruzleski J E. Mechanism of grain refinement in aluminum. Acta Metallurgica et Materialia, 1995, 43(5): 2001–2012.
Liu Z X, Song T F, Xie J P, et al. Production and grain refinement of direct electrolytic low-titanium aluminium alloys. The Chinese Journal of Nonferrous Metals, 2003, 13(5): 1257–1261. (In Chinese)
Li P J, Ye Y C, He L J. Valence electron structure analysis of refining mechanism of Sc and Ti additions on aluminum. Chinese Science Bulletin, 2009, 54(5): 836–841.
Wang J H, Yi D Q. Effect of titanium on microstructure and properties of 2618 aluminum alloy. Hot Working Technology, 2002 (6): 1–2, 47. (In Chinese)
Zhao S X, Li S P, Zhao D Q, et al. Effect of Li and Ti additions on L⇔α(A1)+Mg2Si pseudobinary eutectic reaction. Journal of Materials Science & Technology, 1997, 13(6): 487–490.
Zhao S X, Li S P, Zhao D Q, et al. The effect of Li and Ti on the phase constitution of α(A1)-Si pseudobinary eutectic composite. International Journal of Cast Metals Research, 1997, 10(1): 45–48.
Wu X F, Zhang G A, Wu F F. Microstructural characteristics of Mg2Si/Al composite under different superheat and electromagnetic stirring. Rare Metal Materials and Engineering, 2015, 44(3): 576–580. (In Chinese)
Li Y M, Yu Y, Ren Y Y. Effect of electromagnetic stirring on microstructures and properties of Al-18Mg2Si alloy. Journal of Shenyang University of Technology, 2009, 31(3): 281–285. (In Chinese)
Zhang J, Fan Z, Wang Y Q, et al. Equilibrium pseudobinary Al-Mg2Si phase diagram. Materials Science and Technology, 2001, 17(5): 494–496.
Li Y M, Liu T Y, Chen S Y, et al. Effect of Ce inoculation on microstructure and mechanical properties of in situ Al-20%Mg2Si composite. International Journal of Metalcasting, 2019, 13(2): 331–336.
Yu J Q, Yi W Z, Chen B D, et al. Binary alloy state atlas. Shanghai: Shanghai Science and Technology Press, 1987. (In Chinese)
Watanabe Y, Nakamura T. Microstructures and wear resistances of hybrid Al-(Al3Ti+Al3Ni) FGMs fabricated by a centrifugal method. Intermetallics, 2001, 9(1): 33–43.
Song C J, Xu Z M, Li J G. Fabrication of in situ Al/Mg2Si functionally graded materials by electromagnetic separation method. Materials and Desigh, 2007, 28(2): 427–433.
Acknowledgements
This work was financially supported by the Science and Technology Development Program of Shouguang (No. 2019JH14), the Science and Technology Development Program of Weifang (No. 2021GX052), and the Natural Science Foundation of Liaoning Province (No. 080137).
Author information
Authors and Affiliations
Corresponding authors
Additional information
Conflict of interest
The authors declare that they have no conflict of interest.
Yu-yan Ren Female, Professor, doctoral superviser. Research interests: light metal composites with high strength/high temperature resistance.
Rights and permissions
About this article
Cite this article
Ren, Yy., Chen, Sy., Liu, Ty. et al. Effect of Ti on microstructure and properties of electromagnetic stirred Al-18wt.%Mg2Si alloy. China Foundry 20, 78–82 (2023). https://doi.org/10.1007/s41230-023-1171-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s41230-023-1171-1