Manufacturing Technology 2018, 18(6):1034-1040 | DOI: 10.21062/ujep/220.2018/a/1213-2489/MT/18/6/1034

Effect of Al5FeSi Phases in Secondary AlZn10Si8Mg Cast Alloys on Mechanical Properties and Fracture Surface

Eva Tillová, Mária Chalupová, Denisa Závodská, Lenka Kuchariková, Juraj Belan, Alan Vaško
Faculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovak Republic

Effect of brittle plate-like Al5FeSi iron phases in secondary (scrap-based - recycled) AlZn10Si8Mg cast alloys with different amount of iron (0.150 wt. % and 0.559 wt. %) on microstructure, mechanical properties (UTS, YTS, ductility and Brinell hardness) and fracture surface were studied. Standard, colour and deep etching were utilized for observation and identification of intermetallic phases (in order to reveal the 3D-morphology of the Si-particles and intermetallic phases). X-ray analysis was used for the evaluation of element composition of the specimen. The results show that SDAS factor decreases with increasing the Fe content; the area proportion and the average length of Al5FeSi phases increased; mechanical properties slightly decreased (YTS from 185 MPa to 176 MPa and UTS from 187 MPa to 178 MPa). The fracture surface consists of transcrystalline ductile fracture, in alloy with 0.150 wt. % Fe the transcrytalline ductile fracture is dominant in the eutectic and on the α-matrix and the transcrystalline cleavage fracture was observed not much; in alloy with 0.559 wt. % Fe the transcrystalline cleavage fracture is dominant.

Keywords: Al-Zn-Si cast alloy, tensile properties, microstructure, iron phases, fracture surface

Published: December 1, 2018  Show citation

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Tillová E, Chalupová M, Závodská D, Kuchariková L, Belan J, Vaško A. Effect of Al5FeSi Phases in Secondary AlZn10Si8Mg Cast Alloys on Mechanical Properties and Fracture Surface. Manufacturing Technology. 2018;18(6):1034-1040. doi: 10.21062/ujep/220.2018/a/1213-2489/MT/18/6/1034.
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    References

    1. https://www.european-aluminium.eu/resource-hub/aluminium-automotive-manual/
    2. DAS, S. K., GREN, J. A. S. (2010). Aluminum Industry and Climate Change-Assessment and responses. In: JOM - the journal of the Minerals, Metals and Materials Society, Vol. 62, No. 2, pp. 27-31. Go to original source...
    3. SCHLESINGER, M. E. (2013). Aluminum Recycling. 2nd ed. CRC Press, Boca Raton, Florida, USA. Go to original source...
    4. McMILLAN, C. A., SKERLOS, S. J., KEOLEIAN, G. A. (2012). Evaluation of the Metals Industry's Position on Recycling and its Implications for Environmental Emissions. In: Journal of Industrial Ecology, Vol. 16, No. 3, pp. 324-333. Go to original source...
    5. KUCHARIKOVÁ, L., TILLOVÁ, E., BOKŮVKA, O. (2016). Recycling and properties of recycled aluminium alloys used in the transportation industry. In: Transport problems, Vol. 11, No. 2, pp. 117-122. Go to original source...
    6. TILLOVÁ, E., CHALUPOVÁ, M., HURTALOVÁ, L., ĎURINÍKOVÁ, E. (2011). Quality control of microstructure in recycled Al-Si cast alloys. In: Manufacturing Technology, Vol. 11, No. 11, pp.70-76. Go to original source...
    7. TAYLOR, J. A. (2012). Iron-containing intermetallic phases in Al-Si based casting alloys. In: Procedia Materials Science, 1, pp. 19-33. Go to original source...
    8. SAMUEL, E., SAMUEL, A. M., DOTY, H. V. et all. 2014. Intermetallic phases in Al-Si based cast alloys: new perspective. In: International Journal of Cast Metals Research, Vol. 27, No. 2, pp. 107-114. Go to original source...
    9. SHABSESTARI, S. G. (2004). The effect of iron and manganese on the formation of intermetallic compounds in aluminum-silicon alloys. In: Materials Science and Engineering A, Vol. 383, No. 2, pp. 289-298. Go to original source...
    10. SAMUEL, A. M., DOTY, H. W., VALTIERRA, S. et all. (2018). Beta Al5FeSi phase platelets-porosity formation relationship in A319.2 type alloys. In: International Journal of Metalcasting, Vol. 12, No.1, pp. 55-70. Go to original source...
    11. LI, Z., LIMODIN, N., TANDJAOUI, A., QUAEGEBEUR, P., WITZ, J.F., BALLOY, D. (2017). Influence of Fe content on the damage mechanism in A319 aluminum alloy: Tensile tests and digital image correlation. In. Engineering Fracture Mechanics. Vol. 183, pp. 94-108. Go to original source...
    12. LU, L., DAHLE, A. K. (2005). Iron-Rich Intermetallic Phases and Their Role in Casting Defect Formation in Hypoeutectic Al-Si Alloys. In: Metallurgical and Materials Transactions A, Vol. 36, No. 13, pp. 819-835. Go to original source...
    13. MOUSTAFA M. A. (2009). Effect of iron content on the formation of β-Al5FeSi and porosity in Al-Si eutectic alloys. In: Journal of Materials Processing Technology. Vol. 209, No. 1, pp. 605-610. Go to original source...
    14. BOROMEI, L. CESCHINI, L., MORRI, A., NICOLETTO, G., RIVA, E. (2010). Influence of the solidification microstructure and porosity on the fatigue strength of Al-Si-Mg casting alloys. In: Mettalurgical Science and Technology, Vol. 28, No.2, pp. 18-24.
    15. CESCHINI, L., BOROMEI, I., MORRI, A., SEIFEDDINE, S., SVENSSON, I. L. (2009). Microstructure, tensile and fatigue properties of the Al-10% Si-2% Cu alloy with different Fe and Mn content cast under controlled conditions. In: Journal of Materials Processing Technology, Vol. 209, No. 15-16, pp. 5669-5679. Go to original source...
    16. HURTALOVÁ L., TILLOVÁ E., CHALUPOVÁ M., BELAN J., UHRÍČIK M. (2016). The Influence of Two Different Casting Moulds on the Fatigue Properties of the Al-Si-Cu Cast Alloy. In: Öchsner A., Altenbach H. (eds) Machining, Joining and Modifications of Advanced Materials. Advanced Structured Materials, vol 61. Springer, Singapore.
    17. TILLOVÁ E., CHALUPOVÁ, M., HURTALOVÁ, L. (2010). Evolution of the Fe-rich phases in recycled AlSi9Cu3 cast alloy during solution treatment. In: Communications - Scientific letters of the University of Žilina, Vol. 12, No. 4, pp. 95-101. Go to original source...
    18. BOLIBRUCHOVÁ, D., ŽIHALOVÁ, M. (2013). Possibilities of iron elimination in aluminium alloys by vanadium. In: Manufacturing Technology, Vol. 13, No. 3, pp. 289-296. Go to original source...
    19. BORKO, K., TILLOVÁ, E., CHALUPOVÁ, M. (2016). The impact of Sr content on Fe-intermetallic phase's morphology changes in alloy AlSi10MgMn. In. Manufacturing Technology, Vol. 16, No. 1, pp. 20-26. Go to original source...
    20. BOLIBRUCHOVÁ, D., RICHTÁRECH, L., DOBOSZ, S. M., MAJOR-GABRYS, K. (2017). Utilisation of mould temperature change in eliminating the Al5FeSi phases in secondary AlSi7Mg0.3 alloy. In: Archives of Metallurgy and Materials, Vol. 62, No. 1, pp. 339-344. Go to original source...
    21. HURTALOVÁ, L., TILLOVÁ, E. (2013). Elimination of the negative effect of Fe-rich intermetallic phases in secondary (recycled) aluminium cast alloy. In: Manufacturing technology, Vol. 13, No. 1, p. 44-50. Go to original source...
    22. CASTELLA, C., PETER, I., LOMBARDO, S., ROSSO, M., MOLINA, R. (2018). Self-hardening aluminum alloys and their potential applications in the automotive industry. In: Metalllurgia Italiana, 5, pp. 19-30.
    23. ROSSO, M., PETER, I., CASTELLA, C., MOLINA, R. (2015). Optimization of composition for self-hardening AlZn10Si8Mg alloys. In: Materials Today: Proceedings, Vol. 2, No. 10, pp. 4949-4956. Go to original source...
    24. GARIBOLDI, E., LEMKE, J. N., ROVATTI, L., BAER, O., TIMELLI, G., BONOLLO, F. (2018). High-temperature behavior of high-pressure diecast alloys based on the Al-Si-Cu system: The role played by chemical composition. In: Metals. Vol. 8, No. 5, 348. Go to original source...
    25. SHANKAR, S., RIDDLE, Y.W., MAKHLOUF, M. M. (2004). Nucleation Mechanism of the Eutectic Phases in Aluminum-Silicon Hypoeutectic Alloys. In: Acta Materialia, Vol. 52, No. 15, pp. 4447-4460. Go to original source...
    26. SHANKAR, S., MAKHLOUF, M. M. (2006). Authors' Reply to Reply of Discussion on Nucleation Mechanism of Eutectic Phases in Aluminum-Silicon Hypoeutectic Alloys. In. Metallurgical and Materials Transactions A, Vol. 37A, No. 4, pp. 1353-1356. Go to original source...

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