INVESTIGATION OF THE INFLUENCE OF THE MANUFACTURING PROCESS ON THE STRUCTURE OF HYPEREUTECTIC ALUMINIUM-SILICON ALLOYS

Authors

  • Boyan Dochev Faculty of Mechanical Engineering, Technical University of Sofia, Branch Plovdiv (BG)
  • Desislava Dimova Faculty of Mechanical Engineering, Technical University of Sofia, Branch Plovdiv (BG)
  • Mihail Zagorski Faculty of Industrial Technology, Technical University of Sofia (BG)
  • Plamen Kasabov Faculty of Mechanical Engineering, Technical University of Sofia, Branch Plovdiv (BG)
  • Bozhana Chuchulska Faculty of Dental Medicine, Medical University of Plovdiv (BG)

DOI:

https://doi.org/10.17770/etr2024vol3.8104

Keywords:

hypereutectic aluminium-silicon alloys, technological processes, structure

Abstract

Two technological approaches were used to produce the hypereutectic aluminium-silicon alloys AlSi21Cu5MgCr, AlSi21Cu5Cr, AlSi25Cu4Cr and AlSi25Cu5Cr. In one case, alloys were melted from pure metals, metallurgical processing of the melts was carried out, and experimental castings were cast. In the other case, remelting of previously prepared alloys was carried out for casting test castings from the studied alloys, and the metallurgical processing of the melts was carried out at a lower temperature. The influence of the method of obtaining the alloys on their structure has been established.

Supporting Agencies
This study was supported by the Bulgarian National Science Fund № КП-06-ПМ67/12, project title: "Investigation of the tribological properties of new nickel-free piston aluminum-silicon alloys".

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References

K. Nogita, S. D. McDonald, K. Tsujimoto, K. Yasuda, A. K. Dahle, “Aluminium phosphide as a eutectic grain nucleus in hypoeutectic Al-Si alloys”, Microscopy, vol. 53, issue 4, August 2004

L. Zhang, S. Chen, Q. Li, G. Chang, “Formation mechanism and conditions of fine primary silicon being uniformly distributed on single αAl matrix in Al-Si alloys”, Materials & Design, vol. 193, August 2020 https://doi.org/10.1016/j.matdes.2020.108853

J. Li, F. S. Hage, X. Liu, Q. Ramasse, P. Schumacher, „Revealing heterogeneous nucleation of primary Si and eutectic Si by AlP in hypereutectic Al-Si alloys“, Scientific Reports vol. 6, Article number: 25244, 2016

S. Wang, M. Fu, X. Li, J. Wang, X. Su, „Microstructure and mechanical properties of Al–Si eutectic alloy modified with Al–3P master alloy“, Journal of Materials Processing Technology, vol. 255, p. 105-109, May 2018 https://doi.org/10.1016/j.jmatprotec.2017.12.008

G. Zhong, Z. B. Wu, C. Qiu, Y. F. Li, H. Nagaumi, “Study on Absorption Rate of Phosphorus for Hypereutectic Al-Si Alloy Modified with Cu-P”, Materials Science Forum, vol. 794-796 p. 112-117 https://doi.org/10.4028/www.scientific.net/MSF.794-796.112

H. Zhang, H. Duan, G. Shao, L. Xu, “Microstructure and mechanical properties of hypereutectic Al-Si alloy modified with Cu-P”, Rare Metals, vol. 27, issue 1, p. 59-63, February 2008 https://doi.org/10.1016/S1001-0521(08)60031-5

H.S. Dai, X.F. Liu, “Optimal holding temperatures and phosphorus additions for primary silicon refinement in Al–high Si alloys”, Materials Science and Technology, vol.25, issue 10, p. 1183-1188, 2009 https://doi.org/10.1179/174328408X382235

M. Zuo, X. Liu, H. Dai, X. Liu,” Al-Si-P master alloy and its modification and refinement performance on Al-Si alloys”, Rare Metals, vol. 28, p. 412–417, 2009

Y. Wu, S. Wang, H. Li, X. Liu, “A new technique to modify hypereutectic Al–24%Si alloys by a Si–P master alloy”, Journal of Alloys and Compounds, vol. 477, issues 1–2, p.139-144, May 2009 https://doi.org/10.1016/j.jallcom.2008.10.015

C. R. Ho & B. Cantor , „Modification of hypoeutectic Al-Si alloys”, Journal of Materials Science, vol. 30, p. 1912–1920, 1995

T. H. Ludwig, P. L. Schaffer, L. Arnberg, “Influence of Phosphorus on the Nucleation of Eutectic Silicon in Al-Si Alloys”, vol. 44, p. 5796–5805, 2013

G. K. Sigworth, “The Modification of Al-Si Casting Alloys: Important Practical and Theoretical Aspects”, International Journal of Metalcasting , vol. 2, p. 19–40, 2008

A. Wang, L. Zhang, J. Xie, „Effects of cerium and phosphorus on microstructures and properties of hypereutectic Al-21%Si alloy“, Journal of Rare Earth, vol. 31, issue 5, p. 522-525, May 2013

https://doi.org/10.1016/S1002-0721(12)60313-5

P. Jiandon, S. Talangkun, „Microstructural Modification Hardness and Surface Roughness of Hypereutectic Al-Si Alloys by a Combination of Bismuth and Phosphorus“, Crystals 2022, 12(8), 1026 https://doi.org/10.3390/cryst12081026

Q. Li, B. Li, J. Liu, J. Li, D. Liu, Y. Lan, T. Xia, „Modification of Hypereutectic Al–20 wt%Si Alloy Based on the Addition of Yttrium and Al–5Ti–1B Modifiers Mixing Melt“, International Journal of Metalcasting, vol. 13, p. 367–383, 2019

M. Zuo, D. Zhao, X. Teng, H. Geng, Z. Zhang, „Effect of P and Sr complex modification on Si phase in hypereutectic Al–30Si alloys“, Materials & Design, vol. 47, p. 857-864, May 2013 https://doi.org/10.1016/j.matdes.2012.12.054

B. Dochev, D. Dimova, М. Zagorski, Р. Kasabov, G. Kamburova, „Investigation of the structure of AlSi25Cu4Cr and AlSi25Cu5Cr alloys“, Environment. Technology. Resources. Rezekne, Latvia, Proceedings of the 14th International Scientific and Practical Conference. Volume 3, р. 83-89, Print ISSN 1691-5402, Online ISSN 2256-070X https://doi.org/10.17770/etr2023vol3.7181

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Published

2024-06-22

Issue

Vol. 3 (2024): Environment. Technology. Resources. Proceedings of the 15th International Scientific and Practical Conference. Volume 3

Section

Engineering Sciences and Production Technologies

License

Copyright (c) 2024 Boyan Dochev, Desislava Dimova, Mihail Zagorski, Plamen Kasabov, Bozhana Chuchulska

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
B. Dochev, D. Dimova, M. Zagorski, P. Kasabov, and B. Chuchulska, “INVESTIGATION OF THE INFLUENCE OF THE MANUFACTURING PROCESS ON THE STRUCTURE OF HYPEREUTECTIC ALUMINIUM-SILICON ALLOYS”, ETR, vol. 3, pp. 53–57, Jun. 2024, doi: 10.17770/etr2024vol3.8104.