The Effects of Pressure During the Crystallization on Properties of the AlSi12 Alloy

• Autorzy: Pastirčák R. , Ščury J. , Moravec J.

Identyfikatory

DOI

10.1515/afe-2017-0099

• Języki publikacji: EN

Abstrakty

EN

The paper deals with the impact of technological parameters on the mechanical properties and microstructure in AlSi12 alloy using squeeze casting technology. The casting with crystallization under pressure was used, specifically direct squeeze casting method. The goal was to affect crystallization by pressure with a value 100 and 150 MPa. From the experiments we can conclude that operating pressure of 100 MPa is sufficient to influence the structural characteristics of the alloy AlSi12. The change in cooling rate influences the morphology of the silicon particles and intermetallic phases. A change of excluded needles to a rod-shaped geometries with significantly shorter length occurs when used gravity casting method. At a pressure of 100 MPa was increased of tensile strength on average of 20%. At a pressure of 150 MPa was increased of tensile strength on average of 30%. During the experiment it was also observed, that increasing difference between the casting temperature and the mold temperature leads to increase of mechanical properties.

Słowa kluczowe

EN

squeeze casting; pressure; aluminium alloy; mechanical properties; microstructure

PL

metoda prasowania stopu; nacisk; stop aluminium; właściwości mechaniczne; mikrostruktura

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2017
• Tom: Vol. 17, iss. 3
• Strony: 103--106
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr.

Twórcy

autor

Pastirčák R.

• University of Zilina, Department of Technological Engineering, Univerzitna 1, 010 26 Zilina, Slovakia

autor

Ščury J.

• University of Zilina, Department of Technological Engineering, Univerzitna 1, 010 26 Zilina, Slovakia

autor

Moravec J.

• University of Zilina, Department of Technological Engineering, Univerzitna 1, 010 26 Zilina, Slovakia

Bibliografia

• [1] Schwam, D., Wallace, J., Chang, Q., Zhu, Y. (2002). Optimization of the squeeze casting process for aluminium alloy parts. https://www.osti.gov/scitech/servlets/purl/801193 (2017-02-03).
• [2] Ragan, E. et al. (2007). Casting of metals under pressure (Liatie kovov pod tlakom). Prešov: Michal Vaško pub. ISBN 978–80–8073–979– 9.
• [3] Iyer, A. (2011). Squeeze casting:The future. http://issinstitute.org.au/wp-content/media/2011/05/ISS- FEL-REPORT-A-IYER-low-res.pdf. (2017-02-11).
• [4] Pastirčák, R., Ščury, J. (2016). Effect of technological parameters on microstructure in alloy AlCu4Ti using squeeze casting. In American Institute of Physics Publising. ISSN 0094-243X, 2016, AIP conference proceedings, vol. 1745.
• [5] Brůna, M., Sládek, A. & Kucharčík, L. (2012). Formation of porosity in Al-Si alloys. Archives of Foundry Engineering. 12(1), 5-8.
• [6] Bolibruchova, D., Richtarech, L., Dobosz, S.M. & Major-Gabryś, K. (2017). Utilisation of Mould Temperature Change in Eliminating the Al5FeSI Phases in Secondary AlSi7Mg0.3 Alloy. Archives of Metallurgy and Materials. 62(1), 357-362.
• [7] Zych, J. (2016). Impact of speed of cooling of initial phase (α) and of eutictics (α + β) on physical and mechanical properties of Al−Si−Mg alloys. WFC2016. World Foundry Congress: May 21-25, 2016, Nagoya, Japan S. (1–2).

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)