Controlling the semisolid grain size during solidification

St. John, D. H., Easton, M. A. and Qian, Ma (2008). Controlling the semisolid grain size during solidification. In: G. Hirt,, A. Rassili and A. Bührig-Polaczek, Solid State Phenomena. Semi-Solid Processing of Alloys and Composites X. Proceedings of The 10th International Conference on Semi-Solid Processing of Alloys and Composites. The 10th International Conference on Semi-Solid Processing of Alloys and Composites, Aachen, Germany; Liège, Belgium, (355-360). 16– 18 September 2008. doi:10.4028/www.scientific.net/SSP.141-143.355


Author St. John, D. H.
Easton, M. A.
Qian, Ma
Title of paper Controlling the semisolid grain size during solidification
Conference name The 10th International Conference on Semi-Solid Processing of Alloys and Composites
Conference location Aachen, Germany; Liège, Belgium
Conference dates 16– 18 September 2008
Proceedings title Solid State Phenomena. Semi-Solid Processing of Alloys and Composites X. Proceedings of The 10th International Conference on Semi-Solid Processing of Alloys and Composites   Check publisher's open access policy
Journal name Semi-Solid Processing of Alloys and Composites X   Check publisher's open access policy
Place of Publication Vaduz, Liechtenstein
Publisher Sci Tech Publications
Publication Year 2008
Year available 2008
Sub-type Fully published paper
DOI 10.4028/www.scientific.net/SSP.141-143.355
Open Access Status Not yet assessed
ISBN 978-3-908451-59-4
3-908451-59-0
ISSN 1012-0394
Editor G. Hirt,
A. Rassili
A. Bührig-Polaczek
Volume 141-143
Start page 355
End page 360
Total pages 6
Language eng
Abstract/Summary This paper will use a new method for predicting grain size and then apply it to various solidification environments to reveal which factors are dominant in determining the final grain size. This study will only focus on methods where the grain size is set during a solidification process. These processes include grain refinement by inoculation of the melt with grain refining particles, increasing the cooling rate, low superheat casting, ultrasonic treatment and the use of chill moulds. Each of these methods can control the grain size to some extent but in order to predict the outcome it needs to be understood how the alloy constitution, inoculant particle characteristics and the casting conditions affect the prime nucleation event for the formation of new grains. These methodologies are currently being used, or have potential to be used, for the production of fine spherical grained semi-solid slurries.
Subjects 291403 Alloy Materials
C1
861203 Metal Castings
091207 Metals and Alloy Materials
0206 Quantum Physics
0912 Materials Engineering
Keyword Grain refinement
Semi-solid processing
Solidification
Ultrasonic treatment
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Wed, 01 Apr 2009, 03:44:30 EST by Sally Beard on behalf of Faculty Of Engineering, Architecture & Info Tech