Sr addition and its effect on the melt cleanliness of A356

Strontium modification of Al-Si alloys has known to have several beneficial effects such as increased feedability, the formation of fibrous Si and increased mechanical properties. However, in the presence of Sr, during melting and holding durations, the oxide structure of the dross may change which...

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Bibliographic Details
Published in:	Materials research express Vol. 7; no. 2; pp. 26549 - 26553
Main Authors:	Atakav, Baturalp, Gürsoy, Özen, Erzi, Eray, Tur, Kazim, Dispinar, Derya
Format:	Journal Article
Language:	English
Published:	Bristol IOP Publishing 01-02-2020
Subjects:	A356 Aluminum base alloys bifilm Cleanliness Dross Mechanical properties porosity Silicon Sr modification
Online Access:	Get full text
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Summary:	Strontium modification of Al-Si alloys has known to have several beneficial effects such as increased feedability, the formation of fibrous Si and increased mechanical properties. However, in the presence of Sr, during melting and holding durations, the oxide structure of the dross may change which leads to several problems during casting operations. In this work, the amount of Sr was changed and the melt was held for 1 h. Reduced Pressure Test (RPT) was used to asses melt quality change and it was found that cleanliness was increased due to the fading of Sr.
Bibliography:	MRX-120155.R1
ISSN:	2053-1591 2053-1591
DOI:	10.1088/2053-1591/ab735b