Sequential Casting of Functionally Graded Material

Abstract:

Functionally graded materials (FGM) are used for components with specific characteristics required by the considered area of application. In this research, functionally graded material is obtained with sequential casting process of two different aluminum alloys. They are poured into the mould, aiming to obtain within the same component high thermal resistance and mechanical strength on one side and ductility and elongation on the other side.The new casting has high potential, especially in the production of automotive components, e.g., pistons. Usually, piston alloys are eutectic Al-Si alloys, with high percentage of other alloying elements which increases the thermal resistance of the material. However, this high concentration of alloying elements leads to a considerable reduction of the material’s elongation that is not always tolerable. The low ductility can be an issue for the inferior part of the piston that is more subjected to fatigue stress. To increase the elongation, in addition to the alloy used for the manufacturing, a hypoeutectic Al-Si alloy is considered in the sequential casting of the FGM, that in turn gives rise to a superior ductility in the component.The purpose of this research is the optimization of the manufacturing process parameters of a functionally graded material to be used for the production of a more performing element. In particular, the produced piston shows a superior resistance at high temperatures in the area which it is in contact with the gas combustion and, simultaneously exhibits a superior fatigue life on its lateral part.

• Periodical: Key Engineering Materials (Volume 750)
• Pages: 153-158
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.750.153
• Online since: August 2017
• Authors: Ildiko Peter*, Mario Rosso, Silvia Lombardo
• Keywords: Aluminium Alloys, Functionally Graded Material, Piston Alloy, Sequential Casting

References

[1] M.C. Shinzato, R. Hypolito, Solid waste from aluminum recycling process: characterization and reuse of its economically valuable constituents, Waste management, Vol.25, pp.37-46, (2005).

DOI: 10.1016/j.wasman.2004.08.005

[2] J. Cui, H.J. Roven, Recycling of automotive aluminum, Transactions of nonferrous metals society of china, Vol.20, pp.2057-2063, (2010).

DOI: 10.1016/s1003-6326(09)60417-9

[3] N. R. Mandal, Aluminum welding, Woodhead publishing, (2002).

[4] Y. Miyamoto, W.A. Kaysser, B.H. Rabin, A. Kawasaki, R.G. Ford, Functionally Graded Materials: Design, Processing and Applications, Kluwer Academic Publishers, Netherlands, (1999).

DOI: 10.1007/978-1-4615-5301-4_7

[5] K. Wakashima: Proc. 2nd FGM Symposiurn, FGM Forum, Tokyo, pp.9-14, (1988).

[6] T. Hirano, T. Yamada,J. Teraki, M. Niino And A. Kumakawa: Proc, 16th Int. Symp. On Space Technology And Science, 16th ISTS Symp.Comm.,Tokyo, pp.375-380, (1988).

[7] J.K. Wessel, The handbook of advanced materials: Enabling new design, John Wiley & Sons, pp.466-468, (2004).

[8] T.O. Mbuya, P.A.S. Reed, Micromechanisms of short fatigue crack growth in an Al–Si piston alloy, Materials Science & Engineering, A612, p.302–309, (2014).

DOI: 10.1016/j.msea.2014.06.046

[9] G. Nicoletto, E. Riva, A. Di Filippo, High Temperature Fatigue Behavior of Eutectic Al-Si-Alloys used for Piston Production, Procedia Engineering, 74, p.157 – 160, (2014).

DOI: 10.1016/j.proeng.2014.06.241

[10] F.S. Silva, Fatigue on engine pistons–A compendium of case studies, Engineering Failure Analysis, 13, pp.480-492, (2006).

DOI: 10.1016/j.engfailanal.2004.12.023

[11] J. Filipczyk, Z. Stanik, Piston damages–Case studies and possibilities of early detection, Journal of KONES Powertrain and Transport, 19, pp.179-184, (2012).

DOI: 10.5604/12314005.1138338

[12] J.G. Kaufman, E.L. Rooy, Aluminum alloy casting: Properties, processes, and applications, American Foundry Society International, pp.19-20, (2004).

[13] N .A. Belov, D.G. Eskin , N.N. Avxentieva, Constituent phase diagrams of the Al–Cu–Fe–Mg–Ni–Si system and their application to the analysis of aluminum piston alloys, Acta Materialia, Vol. 53, p.4709–4722, (2005).

DOI: 10.1016/j.actamat.2005.07.003

[14] 14. S. Manasijevic et. Al, Thermal analysis and microscopic characterization of the piston alloy AlSi13Cu4Ni2Mg, Intermetallics, Vol 19, pp.486-492, (2011).

DOI: 10.1016/j.intermet.2010.11.011

[15] J. Osten, B. Milkereit, C. Schick and O. Kessler, Dissolution and Precipitation Behavior during Continuous Heating of Al–Mg–Si Alloys in a Wide Range of Heating Rates, Materials, 8, pp.2830-2848 (2015).

DOI: 10.3390/ma8052830

[16] M. J. Starink, Analysis of aluminum based alloys by calorimetry: quantitative analysis of reactions and reaction kinetics, International Materials Reviews, Vol 49, pp.191-226, (2004).

DOI: 10.1179/095066004225010532

[17] J.L. Murray, A.J. McAlister, The Al-Si (Aluminum-Silicon) system, Bullettin of alloy phase diagrams, Vol.5, p.75,(1984).

DOI: 10.1007/bf02868729

[18] W.S. Miller, L. Zhuang, J. Bottema, A.J. Wittebrood, P. De Smet, A. Haszler, A. Vieregge, Recent development in aluminum alloys for the automotive industry, Materials Science and Engineering, Vol. 280, pp.37-49, (2000).

DOI: 10.1016/s0921-5093(99)00653-x