Self-Hardening AlZn10Si8Mg Aluminium Alloy as an Alternative Replacement for AlSi7Mg0.3 Aluminium Alloy

Open access

Abstract

This article deals with the fatigue properties of newly used AlZn10Si8Mg aluminium alloy where the main aim was to determine the fatigue strength and compare it with the fatigue strength of AlSi7Mg0.3 secondary aluminium alloys which is used in the automotive industry for cyclically loaded components. AlZn10Si8Mg aluminium alloy, also called UNIFONT 90, is self-hardening (without heat treatments), which contributes to economic efficiency. This is one of the main reasons why is compared, and may be an alternative replacement for AlSi7Mg0.3 alloy which is heat treated to achieve required mechanical properties. The experiment results show that the fatigue properties of AlZn10Si8Mg alloy are comparable, if not better, than AlSi7Mg0.3 alloy. Fatigue properties of AlZn10Si8Mg alloy are achieved after seven days of natural ageing, immediately after casting and achieving value of fatigue strength is caused by structural components formed during solidification of the melt.

[1] Panušková, M. (2006). Improve the performance of selected aluminum alloys for castings, Dissertation project, University of Zilina, 62 p.

[2] Castella, CH. (2015). Self hardening aluminum alloys for automotive applications, PhD thesis. Politecnico di Torino, 2015. 136 p.

[3] Boromei, I. et al. (2010). Influence of the solidification microstructure and porosity on the fatigue strength of Al-Si-Mg casting alloys. Metallurgical Science and Technology. 28(2), 18-24.

[4] Tillová, E., Chalupová, M. (2009). Structural analysis of Al-Si alloys. Zilina, 191 p. ISBN 978-80-554-0088-4.

[5] Ďuriníková, E. (2012). The effect of selected factors on the structure and properties of the secondary aluminum alloy AlZn10Si8Mg, dissertation, University of Zilina, 125 p.

[6] Brezinová, J., Draganovská, D., Guzanová, A., Vojtko, M. (2014). The Wear Evaluation of Blasting Machine’s Blades, In Key Engineering Materials, Vol. 635, p. 190-193, ISBN 978-3-03835-344-7, ISSN 1662-9795.

[7] Pastirčák, R. (2014). Effect of low pressure application during solidification on microstructure of AlSi alloys. In Manufacturing technology. Journal for Science, Research and Production. 14(3), 397-402. ISSN 1213-2489.

[8] Bolibruchová, D., Macko, J. & Brůna, M. (2014). Elimination of negative effect of Fe in secondary alloys AlSi6Cu4 (EN AC 45 000, A 319) by nickel. Archives of Metallurgy and Materials. 59(2), 717-721. ISSN 1733-3490.

[9] Nigrovič, R., Meško, J. & Zrak, A. (2016). The Influence of Laser Beam on the Surface Integrity of Cutting Edge, In Manufacturing technology. Journal for Science, Research and Production. 16(6), 1332-1336. ISSN 1213-2489.

Archives of Foundry Engineering

The Journal of Polish Academy of Sciences

Journal Information


CiteScore 2016: 0.42

SCImago Journal Rank (SJR) 2016: 0.192
Source Normalized Impact per Paper (SNIP) 2016: 0.316

Cited By

Metrics

All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 163 90 9
PDF Downloads 65 58 4