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arXiv · 1511.07112

Liquid structure changes of Bi under different melt states

Ziyang He·Chen Liang·Guoqiu He
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Abstract

This paper is focused on the relationship between solidification and melt sates. An abnormal change which takes place at 744 C from 84 to 120 min indicated a liquid-liquid structure transition in pure Bi melt. Based on liquid-liquid structure transition, experiments of pure Bi were carried out. Cooling from different melt states, the solidification behaviors and structures changed a lot, such as undercooling, solidification time, grain sizes and the number of twins and pedestal sits. Especially, as a semi-metal, a liquid-liquid structure transition greatly increases the metallicity of Bi, and during the solidification Bi turned from smooth to coarse solid/ liquid interface.

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Ziyang He, Chen Liang, Guoqiu He. 2018-08-26. Liquid structure changes of Bi under different melt states. https://arxiv.org/abs/1511.07112

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