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Type: Conference paper
Title: Microstructural improvement of semi solid hypoeutectic Al-Si foundry alloys through boron addition
Author: Nafisi, S.
Vali, H.
Szpunar, J.
Ghomashchi, R.
Citation: Light Metals 2008, Vol. 2, Aluminum Reduction Technology / D. H. DeYoung (ed.): pp.683-688
Issue Date: 2008
Series/Report no.: Light Metals
ISBN: 9780470943397
ISSN: 0147-0809
Conference Name: TMS Annual Meeting & Exhibition (137th : 2008 : New Orleans, Louisiana, USA)
Editor: DeYoung, D.H.
Statement of
Shahrooz Nafisi, H. Vali, J. Szpunar, and Reza Ghomashchi
Abstract: Comprehensive study was performed on the impact of grain refiners addition to the microstructural evolution of semi-solid hypoeutectic Al-Si slurries. The most widely used industrial refiners are AlTiB master alloys in spite of their well proven drawbacks including fading and settling of the so-called nucleant particles. A1-B master alloy is re-introduced as a potent substitute of traditional AlTiB master alloys. In semi solid casting of Al7Si0.35Mg alloy, it is shown that by boron addition, the number of primary Al-globules is increased. Improved globuiarity coupled with smaller primary particle size leads to superior rheological characteristics of the SSM billets.
Rights: Copyright status unknown
Description (link):,descCd-tableOfContents.html
Appears in Collections:Aurora harvest
Materials Research Group publications
Mechanical Engineering conference papers

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