caa a22 4500 463231473 CHVBK 20180405153243.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s10853-007-1997-8 doi (NATIONALLICENCE)springer-10.1007/s10853-007-1997-8 Modelling of grain size transition with alloy concentration in solidified Al-Si alloys [Elektronische Daten] [Xiangdong Yao, Arne Dahle, Cameron Davidson, David StJohn] The transition in grain size with Si content in Al-Si alloys has been systematically investigated by the Cellular Automaton-Finite control Volume Method (CAFVM) to understand the operating mechanisms for this behavior. Three aspects: growth restriction factor (GRF), the chemical driving force (CDF) and the constitutional undercooling (ΔT C ) have been demonstrated to affect the microstructure formation, and among them the ΔT C plays the most important role. Furthermore, it is also shown that the surface modification of the nucleant particles by silicon significantly influences the grain formation. However, the combined effects of the investigated factors on the grain size were not sufficiently strong to cause a grain size change similar to that observed experimentally. This implies that there could be other mechanisms that control the transition. Springer Science+Business Media, LLC, 2007 Yao Xiangdong School of Engineering, James Cook University, 4811, Townsville, QLD, Australia aut Dahle Arne CRC for Metals and Manufacturing (CAST), University of Queensland, 4072, Brisbane, QLD, Australia aut Davidson Cameron CSIRO - Manufacturing and Infrastructure Technology, P.O. Box 883, 4069, Kenmore, QLD, Australia aut StJohn David CRC for Metals and Manufacturing (CAST), University of Queensland, 4072, Brisbane, QLD, Australia aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/23(2007-12-01), 9756-9764 0022-2461 42:23<9756 2007 42 10853 https://doi.org/10.1007/s10853-007-1997-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1997-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yao Xiangdong School of Engineering, James Cook University, 4811, Townsville, QLD, Australia aut NATIONALLICENCE 700 1- Dahle Arne CRC for Metals and Manufacturing (CAST), University of Queensland, 4072, Brisbane, QLD, Australia aut NATIONALLICENCE 700 1- Davidson Cameron CSIRO - Manufacturing and Infrastructure Technology, P.O. Box 883, 4069, Kenmore, QLD, Australia aut NATIONALLICENCE 700 1- StJohn David CRC for Metals and Manufacturing (CAST), University of Queensland, 4072, Brisbane, QLD, Australia aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/23(2007-12-01), 9756-9764 0022-2461 42:23<9756 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer