Effect of Manganese and Iron Content on Morphology of Iron Intermetallic Phases in AlSi7Mg0.3 Alloy

• Autorzy: Podprocká R. , Bolibruchová D.

Identyfikatory

DOI

10.24425/122508

• Języki publikacji: EN

Abstrakty

EN

Iron is presented as an impurity in Al-Si alloys and occurs in the form of the β-Al5FeSi phase formations. The presence of iron and other elements in the alloy causes the formation of large intermetallic phases. Due to the high brittleness of this phase, it reduces the mechanical properties and increases the porosity. Manganese is used to inhibit the formation of this detrimental phase. It changes the morphology of the phase to polyhedral crystals, skeletal formations, or Chinese script. The present article deals with the influence of various amounts of manganese (0.1; 0.2; 0.4; 0.6 wt. %) on the formation of iron-based intermetallic phases in the AlSi7Mg0.3 alloy with different levels of iron content (0.4; 0.8, 1.2 wt. %). The increase of iron content in each alloy caused the creation of more intermetallic compounds and this effect has been more significant with higher concentrations of manganese. In alloys where the amount of 1.2 wt. % iron is present, the shape of eutectic silicon grain changes from angular to short needle type.

Słowa kluczowe

EN

AlSi7Mg0,3 alloy; needle Al5FeSi phase; manganese; phase morphology

PL

stop AlSi7Mg0,3; mangan; morfologia fazy

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 2
• Strony: 95--99
• Opis fizyczny: Bibliogr. 8 poz., rys., tab., wykr.

Twórcy

autor

Podprocká R.

• Department of Technological Engineering, Faculty of Mechanical Engineering, University of Žilina, Slovak Republic

autor

Bolibruchová D.

• Department of Technological Engineering, Faculty of Mechanical Engineering, University of Žilina, Slovak Republic

Bibliografia

• [1] Taylor, J.A. (2012). Iron-containing intermetallic phase in Al-Si based casting alloys. Procedia Materials Science. 1, 19-33.
• [2] Shabestari, S.G., 2004. The effect of iron and manganese on the formation of intermetallic compounds in aluminium-silicon alloys. Materials Science and Engineering. A 383, 289-298.
• [3] Zhang, et. al. (2013). Effect of the Mn/Fe ratio and cooling rate on the modification of Fe intermetallic compounds in cast A356 based alloy with different Fe contents. Materials Transactions. 54(8), 1484-1490.
• [4] Taylor, J.A. (2004). The effect of iron in Al-Si casting alloys. In 35th Australian Foundry Institute National Conference, 2004, (pp. 148-157).
• [5] Pastirčák, R., Ščury, J. (2016). Effect of technological parameters on microstructure in alloy AlCu4Ti using squeeze casting. American Institute of Physics Publising. 1745.
• [6] Bolibruchová, D., Žihálová, M. (2014). Vanadium influence on iron based intermetallic phases in AlSi6Cu4. Archives of Metallurgy and Materials. 59(3), 1029-1032.
• [7] Fortini, et al. (2016). On influence of Mn and Mg additions on tensile properties, microstructure and quality index of the A356 aluminum foundry alloy. 21st European Conference on Fracture. Procedia Structural Integrity. 2, 2238-2245.
• [8] Cao, X. & Campbell, J. (2006). Morphology of Al5FeSi Phase in Al-Si Cast Alloys. Materials Transactions. 47(5), 1303-131.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).