Nafisi, S.Vali, H.Szpunar, J.Ghomashchi, R.DeYoung, D.H.2012-05-012012-05-012008Light Metals 2008, Vol. 2, Aluminum Reduction Technology / D. H. DeYoung (ed.): pp.683-68897804709433970147-0809http://hdl.handle.net/2440/70618Comprehensive 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.enCopyright status unknownConference paper00201089230002559819001202-s2.0-4574911064329608Ghomashchi, R. [0000-0003-3633-2296]