EFFECT OF ANISOTROPIC SURFACE TENSION ON THE GROWTH OF COLUMNAR CRYSTALS IN TERNARY UNDERCOOLED MELTS

Hailong Fan (), Yanyan Shan () and Mingwen Chen
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Hailong Fan: School of Mathematics and Physics, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, P. R. China
Yanyan Shan: College of Science, Inner Mongolia University of Technology, 49 Aimin Street, Xincheng District, Inner Mongolia, Hohhot 010051, P. R. China
Mingwen Chen: School of Mathematics and Physics, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, P. R. China

Surface Review and Letters (SRL), 2021, vol. 28, issue 06, 1-10

Abstract: The effect of anisotropic surface tension on the growth of columnar crystals in ternary melt is studied, and the approximate analytical solution of the growth morphology of columnar crystals is given. It is found that in the initial stage of growth, some parts of the interface grow outward, while some parts first grow inward, and grow outward together with other parts after reaching a certain depth, which makes the columnar crystal interface form a remarkable concave and convex formation. Compared with the case in the pure melt and ternary alloy melt, the component added in the ternary alloy melt decreases the effect of the anisotropic surface tension.

Keywords: Columnar crystal; anisotropic; ternary melt; interface morphology (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1142/S0218625X21500463

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