LOCAL ATOMIC ARRANGEMENT OF Al — Fe 20 at.% — Sn MELTS

DOI: https://doi.org/10.17721/1728-2209.2025.1(60).11

Authors

Keywords:

X-ray diffraction, metallic melt, Reverse Monte Carlo simulation, short-range order

Abstract

Background. Alloying of the aluminum-based antifriction materials enhances the wear resistance and thermal stability. Copper, cobalt, and chromium are widely used in the industry as additions to aluminum–tin alloys; however, there are no studies on the influence of iron in the scientific literature. The determination of the peculiarities of atomic ordering in Al–Fe–Sn melts should allow to predict the phase composition of the corresponding composites.

Methods. The scattering curves of Al67Fe20Sn13, Al60Fe20Sn20 and Al52Fe20Sn20 melts have been obtained at 1500°C by means of X-ray diffraction. The structural models of melts have been reconstructed using Reverse Monte Carlo simulation, and statistical-geometric approach with Voronoi diagrams and Delaunay tessellations was applied for characterization.

Results. The micro-inhomogeneous structure of Al80-xFe20Snx (x=13, 20, 28) melts at 1500°C was confirmed. After the analysis of the obtained structural models, the regularities of changes in the local environment of atoms with concentration were established.

Conclusions. The possibility of the existence of the enriched in Fe and Sn phases in the aluminum matrix after solidification of the Al80-xFe20Snx alloys with low tin content has been demonstrated. Such phases have a negative impact on the operational characteristics of antifriction materials, therefore the compositions Al60Fe20Sn20 and Al52Fe20Sn28 are more preferable.

.

References

Bol, W. (1967). The use of balanced filters in x-ray diffraction. Journal of Scientific Instruments, 44(9), 736–739. https://doi.org/10.1088/0950-7671/44/9/323

Bangert, H., Eisenmenger-Sittner, C., & Bergauer, A. (1996). Deposition and structural properties of two-component metal coatings for tribological applications. Surface and Coatings Technology, 80(1–2), 162–170. https://doi.org/10.1016/0257-8972(95)02704-1

Bhat, J., Pinto, R., & Satyanarayan. (2019). A review on effect of alloying elements and heat treatment on properties of Al - Sn alloy. Materials Today: Proceedings, 35, 340–343. https://doi.org/10.1016/j.matpr.2020.01.617

Cromer, D. T., & Liberman, D. (1970). Relativistic Calculation of Anomalous Scattering Factors for X Rays. The Journal of Chemical Physics, 53(5), 1891–1898. https://doi.org/10.1063/1.1674266

Cromer, D. T., & Waber, J. T. (1965). Scattering factors computed from relativistic Dirac–Slater wave functions. Acta Crystallographica, 18(1), 104–109. https://doi.org/10.1107/S0365110X6500018X

Desai, P.D. (1987). Thermodynamic Properties of Selected Binary Aluminum Alloy Systems. J. Phys. Chem. Ref. Data, 16(1), 109-124. https://doi.org/10.1063/1.555788

Dixon, c. F., & Skelly, H. M. (1973). PROPERTIES OF ALUMINIUM-TIN ALLOYS PRODUCED BY POWDER METALLURGY. Powder Metallurgy, 16(32), 366–373. https://doi.org/10.1179/pom.1973.16.32.012

Fartushna, I., Bajenova, I., Khvan, A., Shilundeni, S., Cheverikin, V., Bulanova, M., & Kondratiev, A. (2022). Analysis of the effect of the liquid phase separation on the formation of microstructure in the Sn-Fe and Al-Fe-Sn alloys. Materials Characterization, 186, 111812. https://doi.org/10.1016/j.matchar.2022.111812

Harris, S. J., McCartney, D. G., Horlock, A. J., & Perrin, C. (2000). Production of ultrafine microstructure in Al-Sn, Al-Sn-Cu and Al-Sn-Cu-Si alloys for use in tribological applications. Materials Science Forum, 331. https://doi.org/10.4028/www.scientific.net/msf.331-337.519

Huang, S., Zhu, B., Zhang, Y., Liu, H., Wu, S., & Xie, H. (2022). Microstructure Comparison for AlSn20Cu Antifriction Alloys Prepared by Semi-Continuous Casting, Semi-Solid Die Casting, and Spray Forming. Metals, 12(10). https://doi.org/10.3390/met12101552

Kazimirov, V. P., & Smyk, S. Yu. (2000). The analysis of the melt structure of the Fe–Sn system using the RMCA method. Journal of Physical Studies, 4(1), 68–72. [In Ukrainian]

Kazimirov, V.P., Sokolskii, V.E., Roik, O.S., & Samsonnikov, O.V. (2009). Structure of disordered systems. Theory, Experimental methods, modeling. Monograph. Publishing and Polygraphic Centre “The University of Kyiv”.

Liu, X., Zeng, M. Q., Ma, Y., & Zhu, M. (2008). Wear behavior of Al-Sn alloys with different distribution of Sn dispersoids manipulated by mechanical alloying and sintering. Wear, 265(11–12), 1857–1863. https://doi.org/10.1016/j.wear.2008.04.050

McAlister, A. J., & Kahan, D. J. (1983). The Al−Sn (Aluminum-Tin) System. Bulletin of Alloy Phase Diagrams, 4(4), 410–414. https://doi.org/10.1007/BF02868095

McGreevy, R. L. (2001). Reverse Monte Carlo modelling. Journal of Physics: Condensed Matter, 13(46), R877. https://doi.org/10.1088/0953-8984/13/46/201

Mcgreevy, R. L., & Pusztai, L. (1988). Reverse Monte Carlo Simulation: A New Technique for the Determination of Disordered Structures. Molecular Simulation, 1(6), 359–367. https://doi.org/10.1080/08927028808080958

Pathak, J. P., & Mohan, S. (2003). Tribological behaviour of conventional Al-Sn and equivalent Al-Pb alloys under lubrication. Bulletin of Materials Science, 26(3), 315–320. https://doi.org/10.1007/BF02707453

Predel, B. (1991). Al-Sn (Aluminum-Tin. Ac-Au– Au-Zr, Springer-Verlag, Berlin/Heidelberg, pp. 1–3, https://doi.org/10.1007/10000866_144

Roik, O. S., Muratov, O. S., Yakovenko, O. M., Kazimirov, V. P., Golovataya, N. V., & Sokolskii, V. E. (2014). X-ray diffraction studies and Reverse Monte Carlo simulations of the liquid binary Fe–Si and Fe–Al alloys. Journal of Molecular Liquids, 197, 215–222. https://doi.org/10.1016/j.molliq.2014.05.009

Stuczyñski, T. (1997). Metallurgical problems associated with the production of aluminium-tin alloys. Materials & Design, 18(4–6), 369–372. https://doi.org/10.1016/S0261-3069(97)00078-2

Summer, F., Grün, F., Offenbecher, M., & Taylor, S. (2019). Challenges of friction reduction of engine plain bearings – Tackling the problem with novel bearing materials. Tribology International, 131, 238–250. https://doi.org/10.1016/j.triboint.2018.10.042

Turchanin, M., Kolchugina, N., Watson, A., & Kroupa, A. (2014). Al-Fe Binary Phase Diagram Evaluation. MSI Eureka, 56, 20.10236.1.8. https://doi.org/10.7121/msi-eureka-20.10236.1.8

Wang, C. P., Wang, M. S., Deng, Y. L., Zhang, J. B., Yang, S. Y., Huang, Y. X., & Liu, X. J. (2022). Phase Equilibria in the Fe-Al-Sn Ternary System. Journal of Phase Equilibria and Diffusion, 43(1), 51–57. https://doi.org/10.1007/s11669-022-00941-0

Downloads

Published

2025-12-28

Issue

Vol. 60 No. 1 (2025): Bulletin of the Taras Shevchenko National University of Kyiv. Chemistry

Section

Articles

License

Copyright (c) 2025 Олексій ЯКОВЕНКО, Олександр РОЇК, Ярославна КАШИРІНА

Creative Commons License

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

How to Cite

LOCAL ATOMIC ARRANGEMENT OF Al — Fe 20 at.% — Sn MELTS: DOI: https://doi.org/10.17721/1728-2209.2025.1(60).11. (2025). Bulletin of the Taras Shevchenko National University of Kyiv. Chemistry, 60(1), 76-80. https://chemistry.bulletin.knu.ua/article/view/4085

Most read articles by the same author(s)