Elimination of Iron Based Particles in Al-Si Alloy

Open access

Abstract

This paper deals with influence on segregation of iron based phases on the secondary alloy AlSi7Mg0.3 microstructure by chrome. 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 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. 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. By experimental work were used three different amounts of AlCr20 master alloy a three different temperature of chill mold. Our experimental work confirmed that chrome can be used as an iron corrector in Al-Si alloy, due to the change of intermetallic phases and shortening their length.

[1] Brůna, M. & Kucharčík, L. (2013). Prediction of the porosity of Al alloys. Manufacturing technology. 13 (3). 296-302, ISSN 1213-2489

[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] Hurtalová,L. & Tillová, E. (2013). Elimination of the negative effect of Fe-rich intermetallicphases in secondary (recycled) aluminium cast alloy. Manufacturing Technology, 13 (1). 44-50, 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

Metrics

All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 168 136 10
PDF Downloads 53 45 2