The Effect of Heat Treatment on the Microstructure and Mechanical Properties of E1 Al-Mg-Sb Eutectic Alloy
Abstract views: 86
/ 
PDF downloads: 47
DOI:
https://doi.org/10.5281/zenodo.7771586Keywords:
Al-Mg-Sb, Eutectic Alloy, Heat Treatment, Mechanical Properties, Microstructure, silage quality propertiesAbstract
In this study, the ternary eutectic Al-Mg-Sb alloy (Sb -9.3% wt. Mg +0.5% wt. Al) with composition is produced using induction furnace system, by casting method into kokil mold which is pre-heated to 500 °C. The casting temperature was set as 750 °C for homogeneous melting of the alloy. After casting, some of the samples were annealed at 350 °C for 2 hours and chilled off to cool in the furnace. After metallographic processing of heat treated and un-heattreated samples, their structural parameters were obtained by XRD, surface morphologies by FESEM, composition analysis by EDX mapping and graphic. Sample’s mechanical properties were obtained by compression tests applied at room temperature and Vickers microhardness tests. According to these results, the structure of the Al-Mg-Sb ternary eutectic alloy forms of solid phases Sb-rhombo, AlSb and α-Mg3Sb2. Sb-rhombo solid phase diffused to penetrate the small voids located at the grain boundary with the effect of heat treatment, and effectively caused an increase in strength. In addition, the fact that the AlSb and α-Mg3Sb2 phases have become more prominent in the structure, the analysis of broken surfaces, compression testing and the results of microhardness values also confirm this.
References
Altın, E., Öz, E., Erdem, M., Demirel, S., Aydoğdu, Y., Altın, S. (2015). Thermoelectric and mechanical properties of Mg–Al–Sb alloys, J Mater Sci: Mater Electron, 26, 1023–1032.
Balakumar, T., & Medraj, M. (2005). Thermodynamic modeling of the Mg–Al–Sb system. Calphad, 29(1), 24-36.
Baril, E., Labelle, P., & Pekguleryuz, M. (2003). Elevated temperature Mg-Al-Sr: creep resistance, mechanical properties, and microstructure. Jom, 55, 34-39.
Bettles, C. J., Humble, P., & Nie, J. F. (1996).The effect of trace additions on the ageing behavior of AZ9IE, Proceedings of the 3rd International Magnesium Conference, pp. 403–417.
Bhardwaj, A., Rajput, A., Shukla, A. K., Pulikkotil, J. J., Srivastava, A. K., Dhar, A., Gupta, G., Auluck, S., Misra, D.K. & Budhani, R. C. (2013). Mg3Sb2-based Zintl compound: a non-toxic, inexpensive and abundant thermoelectric material for power generation. RSC advances, 3(22), 8504-8516.
Emley EF (1966). Principles of Magnesium Technology. Perga-mon Press, Oxford, p.879.
Guangyin, Y., Yangshan, S., & Wenjiang, D. (2000). Effects of Sb addition on the microstructure and mechanical properties of AZ91 magnesium alloy. Scripta Materialia, 43(11), 1009-1013.
Guertler, W. and Bergmann, A. (1933). Ternary System: Aluminum-Antimony-Magnesium, Z. Metallk. 25, pp. 81–84.
Guertler, W. and Bergmann, A. (1933). Ternary System: Aluminum-Antimony-Magnesium, Z. Metallk. 25, pp. 111-116.
J.H. Bredt, L.F. Kendall, in IEEE/AIAA Thermoelectric Specialists Conference, Washington, 17–19 May 1966
Keyvani, M., Mahmudi, R., & Nayyeri, G. (2010). Effect of Bi, Sb, and Ca additions on the hot hardness and microstructure of cast Mg–5Sn alloy. Materials Science and Engineering: A, 527(29-30), 7714-7718.
Loofs-Rassow, E., Hauszeitschrift, V. A. W., & Erftwerk, A. G. (1931). Microscopic and Thermal Investigation of Al−Sb−Mg Alloys. Hauszeitschr. VAW Erftwerk AG Aluminium, 3, 20-32.
Martinez-Ripoll, M., Haase, A., & Brauer, G. (1974). The crystal structure of α-Mg3Sb2. Acta Crystallographica Section B: Structural Crystallography and Crystal Chemistry, 30(8), 2006-2009.
Mordike, B. L. (2001). Development of highly creep resistant magnesium alloys. Journal of Materials Processing Technology, 117(3), 391-394.
Raynor, G. V. (1959). The Physical Metallurgy of Magnesium and Its Alloys. Pergamon Press2, p. 386.
Roberts, C. S. (1960). Magnesium and its Alloys. John Weily and Sons Inc., Wiley,New York, p. 101.
Tkachenko VG, Maksimchuk IN, Volosevich PY, Lashuk NK, Malka AN, Friezel VV (2006), Creep resistance and long-term strength of structural magnesium alloys, High Temp Mater Proc 25(1–2) 97–107.
Verbrugge, D. M., & Van Zytveld, J. B. (1993). Electronic properties of liquid MgSb. Journal of non-crystalline solids, 156, 736-739.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Euroasia Journal of Mathematics, Engineering, Natural & Medical Sciences
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
The journal is licensed under a 