Solute Analyse of Directional Solidification Microstructure in a Binary Alloy

DOI

10.2991/emeit.2012.191How to use a DOI?

Keywords

numerical simulation, Bridgman directional solidification, microsegregation, phase-field method, microstructure, pulling velocity,

Abstract

In this paper, the directional solidification microstructure of Bridgman system was simulated using phase-field method, and different calculated results were obtained with four pulling velocities. Transverse solute shows “U” shape profiles. With the pulling velocity (vp) increasing, the span of “U” figures decreases and the deepness of “U” figures decreases too. When the pulling velocity reaches 3.00 cm/s, the “U” figures disappear. With the supersaturation and the growing velocity increases, the directional microstructure changes from thin columnar crystals into much thinner columnar crystals. Transverse solute has a very little fluctuation around the initial concentration and the solute trapping phenomenon takes place.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jinjun Tang
AU  - Mingan Zhou
PY  - 2012/09
DA  - 2012/09
TI  - Solute Analyse of Directional Solidification Microstructure in a Binary Alloy
BT  - Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012)
PB  - Atlantis Press
SP  - 889
EP  - 892
SN  - 1951-6851
UR  - https://doi.org/10.2991/emeit.2012.191
DO  - 10.2991/emeit.2012.191
ID  - Tang2012/09
ER  -