Modeling of columnar-to-equiaxed transition in solidified Al-Si alloys

Yao, X., Wang, H., He, B. and Zhou, X (2005). Modeling of columnar-to-equiaxed transition in solidified Al-Si alloys. In: Z. Zhong, H. Saka, T. H. Kim, E. A. Holm, Y. Han and X. Xie, The Fifth Pacific Rim International Conference on Advanced Materials and Processing. 5th Pacific Rim International Conference on Advanced Materials and Processing, Beijing, China, (3141-3144). 2-5 November 2004.

Author Yao, X.
Wang, H.
He, B.
Zhou, X
Title of paper Modeling of columnar-to-equiaxed transition in solidified Al-Si alloys
Conference name 5th Pacific Rim International Conference on Advanced Materials and Processing
Conference location Beijing, China
Conference dates 2-5 November 2004
Proceedings title The Fifth Pacific Rim International Conference on Advanced Materials and Processing   Check publisher's open access policy
Journal name Materials Science Forum   Check publisher's open access policy
Place of Publication Switzerland
Publisher Trans Tech Publications
Publication Year 2005
Sub-type Fully published paper
ISBN 0878499601
9780878499601
ISSN 0255-5476
Editor Z. Zhong
H. Saka
T. H. Kim
E. A. Holm
Y. Han
X. Xie
Volume 475-479
Issue IV
Start page 3141
End page 3144
Total pages 4
Language eng
Abstract/Summary A Cellular-Automaton Finite-Volume-Method (CAFVM) algorithm has been developed, coupling with macroscopic model for heat transfer calculation and microscopic models for nucleation and growth. The solution equations have been solved to determine the time-dependent constitutional undercooling and interface retardation during solidification. The constitutional undercooling is then coupled into the CAFVM algorithm to investigate both the effects of thermal and constitutional undercooling on columnar growth and crystal selection in the columnar zone, and formation of equiaxed crystals in the bulk liquid. The model cannot only simulate microstructures of alloys but also investigates nucleation mechanisms and growth kinetics of alloys solidified with various solute concentrations and solidification morphologies.
Subjects 08 Information and Computing Sciences
0906 Electrical and Electronic Engineering
Keyword Materials Science, Multidisciplinary
Modeling
Solidification
Microstructure Formation
Cafvm
Columnar-to-equiaxed Transition
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes Other Titles: PRICM-5, Advanced materials and processing

 
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Created: Mon, 13 Aug 2007, 15:02:59 EST