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Effects of Mg2Sn intermetallic on the microstructure and tensile properties of Al–15% Mg2Si–X% Sn composite

Published online by Cambridge University Press:  22 November 2016

M. Emamy ,
B. Pourbahari ,
M. Malekan  and
K. Emami
M. Emamy*
Affiliation:
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
B. Pourbahari
Affiliation:
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
M. Malekan
Affiliation:
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
K. Emami
Affiliation:
Department of Mechanical Engineering, Shahid Rajaee Teacher Training University (SRTTU), Lavizan, Tehran, Iran
*
a) Address all correspondence to this author. e-mail: [email protected]
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Abstract

The effects of different Sn contents on the microstructure and tensile properties of an in situ prepared Al–15% Mg2Si composite were investigated. Adding 5 wt% Sn not only reduced the average size of Mg2Si primary particles from ∼55 µm to ∼10 µm, but also increased the ultimate tensile strength and elongation values. Mg2Sn intermetallic was identified in Al–15% Mg2Si–5% Sn composite and the lowest disregistry was also found for $\left( {001} \right)_{{\rm{Mg}}_2 {\rm{Sn}}} {\parallel} \left( {001} \right)_{{\rm{Mg}}_{\rm{2}} {\rm{Si}}}$ , indicating that Mg2Sn can be a potent heterogeneous nucleation site for Mg2Si particles. Computer-aided cooling curve analysis revealed that Sn addition changes the solidification performance of the material by increasing both solidification time and recalescence undercooling and also reducing the growth temperature to some extent. The solidification behavior of the composite was also explained in terms of the presence of oxide bifilms in the liquid Al.

Keywords

Al–Mg2Si compositemicrostructure
Type
Articles
Information
Journal of Materials Research , Volume 31 , Issue 24 , 28 December 2016 , pp. 3891 - 3899
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Copyright
Copyright © Materials Research Society 2016 

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References

REFERENCES

Emamy, M., Oliayee, M., and Tavighi, K.: Microstructures and tensile properties of Al/2024–Al4Sr composite after hot extrusion and T6 heat treatment. Mater. Sci. Eng., A. 625, 303 (2015).CrossRefGoogle Scholar
Tjong, S.C. and Ma, Z.: Microstructural and mechanical characteristics of in situ metal matrix composites. Mater. Sci. Eng., R 29, 49 (2000).CrossRefGoogle Scholar
Khorshidi, R., Raouf, A.H., Emamy, M., and Campbell, J.: The study of Li effect on the microstructure and tensile properties of cast Al–Mg2 Si metal matrix composite. J. Alloys Compd. 509, 9026 (2011).CrossRefGoogle Scholar
Liu, Y., Kang, S., and Kim, H.: The complex microstructures in an as-cast Al–Mg–Si alloy. Mater. Lett. 41, 267 (1999).CrossRefGoogle Scholar
Zhang, J., Fan, Z., Wang, Y.Q., and Zhou, B.L.: Equilibrium pseudobinary Al–Mg2Si phase diagram. Mater. Sci. Technol. 17, 494 (2001).CrossRefGoogle Scholar
Ghorbani, M., Emamy, M., Khorshidi, R., Rasizadehghani, J., and Emami, A.: Effect of Mn addition on the microstructure and tensile properties of Al–15% Mg2Si composite. Mater. Sci. Eng., A 550, 191 (2012).CrossRefGoogle Scholar
Li, C., Wu, Y., Li, H., Wu, Y., and Liu, X.: Effect of Ni on eutectic structural evolution in hypereutectic Al–Mg2Si cast alloys. Mater. Sci. Eng., A 528, 573 (2010).Google Scholar
Lu, L., Thong, K., and Gupta, M.: Mg-based composite reinforced by Mg2Si. Compos. Sci. Technol. 63, 627 (2003).CrossRefGoogle Scholar
Hadian, R., Emamy, M., and Campbell, J.: Modification of cast Al–Mg2Si metal matrix composite by Li. Metall. Mater. Trans. B 40, 822 (2009).CrossRefGoogle Scholar
Wu, X.F., Zhang, G.G., and Wu, F.F.: Microstructure and dry sliding wear behavior of cast Al–Mg2Si in situ metal matrix composite modified by Nd. Rare Met. 32, 284 (2013).CrossRefGoogle Scholar
Yu, H.C., Wang, H.Y., Chen, L., Zha, M., Wang, C., Li, C., and Jiang, Q.C.: Influence of Li2Sb additions on microstructure and mechanical properties of Al–20Mg2Si alloy. Materials 9, 243 (2016).CrossRefGoogle ScholarPubMed
Sun, Y., Ma, S., Wang, H., Chen, L., Gao, K., Ma, Y., and Liu, B.: Effects of complex modification by Sr–Sb on the microstructures and mechanical properties of Al–18 wt% Mg2Si–4.5 Cu alloys. Materials 9, 157 (2016).CrossRefGoogle Scholar
Farahany, S., Bakhsheshi-Rad, H.R., Idris, M.H., Kadir, M.R., Lotfabadi, A.F., and Ourdjini, A.: In situ thermal analysis and macroscopical characterization of Mg–xCa and Mg–0.5Ca–xZn alloy systems. Thermochim. Acta 527, 180 (2012).CrossRefGoogle Scholar
Huang, Z.H., Liang, S.M., Chen, R.S., and Han, E.H.: Solidification pathways and constituent phases of Mg–Zn–Y–Zr alloys. J. Alloys Compd. 468, 170 (2009).CrossRefGoogle Scholar
Malekan, M. and Shabestari, S.G.: Computer-aided cooling curve thermal analysis used to predict the quality of aluminum alloys. J. Therm. Anal. Calorim. 103, 453 (2011).Google Scholar
Li, C., Liu, X., and Wu, Y.: Refinement and modification performance of Al–P master alloy on primary Mg2Si in Al–Mg–Si alloys. J. Alloys Compd. 465, 145 (2008).Google Scholar
Azarbarmas, M., Emamy, M., Rassizadehghani, J., and Alipour, M.: The influence of beryllium addition on the microstructure and mechanical properties of Al–15% Mg2Si in situ metal matrix composite. Mater. Sci. Eng., A 528, 8205 (2011).Google Scholar
Mohamed, A., Samuel, F., Samuel, A., Doty, H., and Valtierra, S.: Influence of tin addition on the microstructure and mechanical properties of Al–Si–Cu–Mg and Al–Si–Mg casting alloys. Metall. Mater. Trans. A 39, 490 (2008).CrossRefGoogle Scholar
Jung, I.H., Kang, D.H., Park, W.J., Kim, N.J., and Ahn, S.: Thermodynamic modeling of the Mg–Si–Sn system. Calphad 31, 192 (2007).CrossRefGoogle Scholar
Hirsch, J., Skrotzki, B., and Gottstein, G.: Aluminium alloys: Their Physical and Mechanical Properties (Wiley-VCH Weinheim, Germany, 2008).Google Scholar
Kozlov, A., Gröbner, J., and Schmid-Fetzer, R.: Phase formation in Mg–Sn–Si and Mg–Sn–Si–Ca alloys. J. Alloys Compd. 509, 3326 (2011).CrossRefGoogle Scholar
Nayeb-Hashemi, A.A. and Clark, J.B.: Alloy phase diagrams. In ASM Handbook, 2nd ed., Vol. 3 (ASM International, Materials Park, 1992); pp. 1107.Google Scholar
Bramfitt, B.L.: The effect of carbide and nitride additions on the heterogeneous nucleation behavior of liquid iron. Metall. Trans. 1, 1987 (1970).CrossRefGoogle Scholar
Campbell, J.: Castings, 2nd ed. (Elsevier Science, Oxford, 2003); pp. 2, 64, 67.Google Scholar
Dispinar, D. and Campbell, J.: Porosity, hydrogen and bifilm content in Al alloy castings. Mater. Sci. Eng., A 528, 3860 (2011).CrossRefGoogle Scholar
Campbell, J.: The consolidation of metals: The origin of bifilms. J. Mater. Sci. 51, 96 (2016).CrossRefGoogle Scholar
Liu, H., Chen, Y., Tang, Y., Wei, S., and Niu, G.: The microstructure, tensile properties, and creep behavior of as-cast Mg–(1–10)% Sn alloys. J. Alloys Compd. 440, 122 (2007).CrossRefGoogle Scholar
Hertzberg, R.: Deformation and Fracture Mechanics of Engineering Materials (John Wiley and Sons, New York, 1996).Google Scholar
Dieter, G.: Mechanical Metallurgy, SI metric (McGraw-Hill, London, UK, 1988).Google Scholar
Warmuzek, M.: Aluminum–Silicon Casting Alloys: An Atlas of Microfractographs (ASM International, 2004).Google Scholar
Babout, L., Brechet, Y., Maire, E., and Fougeres, R.: On the competition between particle fracture and particle decohesion in metal matrix composites. Acta Mater. 52, 4517 (2004).CrossRefGoogle Scholar