The microstructure and mechanical properties of alloys of the Al – Si system modified with nanosize tungsten powder in an amount of 0.01 – 0.5 wt.% during casting are studied. The phase composition, the sizes, and the localization of phases in the microstructure of the initial and modified Al – Si alloys are investigated by the methods of optical, scanning, and transmission electron microscopy. The ultimate strength, the elongation, and the impact toughness of the Al – Si alloys are determined before and after modification with nanosize tungsten powder.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Notes
Here and below in the paper the content of elements is given in weight percent.
References
M. Zeren and E. Karakulak, “Influence of Ti addition on the microstructure and hardness properties of near-eutectic Al – Si alloys,” J. Alloys Compd., 450, 255 – 259 (2008).
M. Nowak, L. Bolzoni, and Babu N. Hari, “The effect of Nb – B inoculation on binary hypereutectic and neareutectic LM13Al – Si cast alloys,” J. Alloys Compd., 641, 22 – 29 (2015).
A. T. Volochko, “Modification of eutectic and primary silicon particles in silumins,” Lit’e Metall., 81(4), 38 – 45 (2015).
E. Witthaya, “Modification of β-Al5FeSi compound in recycled Al – Si – Fe cast alloy by using Sr, Mg and Cr additions,” Mater. Sci. Technol., 24(1), 45 – 47 (2008).
Z. Quian, X. Liu, D. Zhao, and G. Zhang, “Effects of trace Mn addition on the elevated temperature tensile strength and microstructure of low-iron Al – Si alloy,” Mater. Lett., 62, 2146 – 2149 (2008).
R. Yuansheng, Y. Hong, and H. Zhi, “Modification of eutectic silicon and β-Al5FeSi phases in as-cast ADC12 alloys by using samarium addition,” J. Rare Earths, 31(9), 916 – 922 (2013).
C. Chen, Z. Liu, B. Ren, et al., “Influences of complex modification of P and E on microstructure and mechanical properties of hypereutectic Al – 20Si alloy,” Trans. Nonferr. Met. Soc. China, 17, 301 (2007).
J. H. Li, X. D. Wang, T. H. Ludwig, et al., “Modification of eutectic Si in Al – Si alloys with Eu addition,” Acta Mater., 84, 153 (2015).
H. Xin and Y. Hong, “Effect of trace La addition on the microstructure and mechanical property of as-cast ADC12 Al-alloy,” J. Wuhan Univ. Technol.-Mater. Sci. Ed., 28(1), 202 – 205 (2013).
Q. Li, T. Xia, Y. Lan, et al., “Effect of rare earth cerium addition on the microstructure and tensile properties of hypereutectic Al – 20% Si alloy,” J. Alloys Compd., 562, 25 – 32 (2013).
I. S. El-Mahallawi, A. Y. Shash, and A. E. Amer, “Nanoreinforced cast Al – Si alloys with Al2O3, TiO2 and ZrO2 nanoparticles,” Metals, No. 5, 802 – 821 (2015).
I. A. Petrov, A. P. Ryakhovskii, V. S. Moiseev, et al., “Prospects of application of carbon-containing material for treating silumins,” Liteishch. Rossii, No. 1, 28 – 32 (2016).
A. P. Zykova, L. A. Kazantseva, and I. A. Kuzina, “The effect of ultrafine powders on the structural formation processes and mechanical properties of Al – 7% Si alloy,” in: AIP Conf. Proc. (2016), Vol 1771, p. 030020.
S. Seifeddine, S. Johansson, and I. L. Svensson, “The influence of cooling rate and manganese content on the β-Al5FeSi phase formation and mechanical properties of Al – Si-based alloys,” J. Mater. Sci. Eng. A, 490, 385 – 390 (2008).
Irizalp S. Gencalp and N. Saklakoglu, “Effect of Fe-rich intermetallics on the microstructure and mechanical properties of thixoformed A380 aluminum alloy,” Eng. Sci. Technol., 17, 58 – 62 (2014).
V. S. Zolotarevsky, N. N. Belov, and M. V. Glazoff, Casting Aluminum Alloys, Alcoa Technical Center, PA, United States (2007), 530 p.
M. A. Moustafa, “Effect of iron content on the formation of β-Al5FeSi and porosity in Al – Si eutectic alloys,” J. Mater. Proc. Technol., 209, 605 – 610 (2009).
A. M. A. Mohamed, A. M. Samuel, F. H. Samuel, and H. W. Doty, “Influence of additives on the microstructure and tensile properties of near-eutectic Al – 10.8% Si cast alloy,” Mater. Design, 30, 3943 – 3957 (2009).
Q. Li, T. Xia, Y. Lan, et al., “Effect of in-situ γ particles on the microstructure of hypereutectic Al – 20% Si alloy,” J. Alloys Compd., 577, 232 – 236 (2103).
L. M. Sorokin, L. P. Efimenko, A. E. Kalmykov, and Yu. I. Smolin, “Electron-microscope investigation of surface layer of aluminum-silicon alloy after laser alloying with tungsten carbide,” Fiz. Tverd. Tela, 46(5), 953 – 958 (2004).
L. F. Mondolfo, Structure and Properties of Aluminum Alloys [Russian translation], Metallurgiya, Moscow (1979), 640 p.
C. M. Dinnis, J. A. Taylor, and A. K. Dahle, “As-cast morphology or iron-intermetallics in Al – Si foundry alloys,” Scr. Mater., 53, 955 (2005).
E. R. Wang and X. D. Hui, “Improved mechanical properties in cast Al – Si alloys by combined alloying of Fe and Cu,” Mater. Sci. Eng. A, 527, 7878 (2010).
The work has been performed with financial support of the Russian Foundation for Basic Research within scientific project No. 16-38-6014mol a dk.
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 4, pp. 19 – 24, April, 2019.
Rights and permissions
About this article
Cite this article
Zykova, A.P., Chumaevskii, A.V. & Martyushev, N.V. Effect of Nanosize Tungsten Powder on the Microstructure and Mechanical Properties of Silumins. Met Sci Heat Treat 61, 222–227 (2019). https://doi.org/10.1007/s11041-019-00404-3
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11041-019-00404-3