Effect of the AlCr20 Addition on the Microstructure of Secondary AlSi7Mg0.3 Alloy

• Autorzy: Bolibruchova D. , Richtarech L.

Identyfikatory

DOI

10.2478/afe-2014-0027

• Języki publikacji: EN

Abstrakty

EN

This paper deals with influence of chrome addition and heat treatment on segregation of iron based phases in the secondary alloy AlSi7Mg0.3 microstructure by chrome and heat treatment. Iron is the most common and harmful impurity in aluminum casting alloys and has long been associated with an increase of casting defects. In generally, iron is associated with the formation of Fe-rich intermetallic phases. It is impossible to remove iron from melt by standard operations, but it is possible to eliminate its negative influence by addition some other elements that affect the segregation of intermetallics in less harmful type or by heat treatment. Realization of experiments and results of analysis show new view on solubility of iron based phases during melt preparation with higher iron content and influence of chrome as iron corrector of iron based phases.

Słowa kluczowe

EN

secondary AlSi7Mg0.3 alloy; iron based alloys; iron phases; thermal analysis; iron correctors; heat treatment

PL

stop AlSi7Mg0,3; analiza termiczna; obróbka cieplna; żelazo; zanieczyszczenie stopu

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2014
• Tom: Vol. 14, iss. 2
• Strony: 9--12
• Opis fizyczny: Bibliogr. 6 poz., rys., tab., wykr.

Twórcy

autor

Bolibruchova D.

• Department of Technological Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 1, 010 26 Slovak Republic

autor

Richtarech L.

• Department of Technological Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 1, 010 26 Slovak Republic

Bibliografia

• [1] Hurtalová, L. & Tillová, E. (2013). Elimination of the negative effect of Fe-rich intermetallic phases in secondary (recycled) aluminium cast alloy. Manufacturing Technology, 13(1), 44-50.
• [2] Pastirčák, R. & Krivoš, E. (2013). Effect of opening material granularity on the mould properties and the quality of casting made by patternless process technology. Manufacturing technology. 13(1), 92-97. ISSN 1213-2489.
• [3] Bolibruchová, D. & Richtarech, L. (2013). Effect of adding iron to the AlSi7Mg0.3 (EN AC 42 100, A356) alloy. Manufacturing Technology. 13(3), 276-281.
• [4] Taylor, J. A. (2004). The effect of iron in Al-Si casting alloys, 35th Australian Foundry Institute National Conference, Adelaide, South Australia, (pp. 148-157).
• [5] Tillová, E., Chalupová, M., Hurtalová, L. & Ďurníková, E. (2011). Quality control of microstructure in recycled Al-Si cast alloys. Manufacturing Technology. 11(11), 70-76.
• [6] Brůna, M. & Kucharčík, L. (2013). Prediction of the porosity of Al alloys. Manufacturing Technology. 13(3), 296-302. ISSN 1213-2489.