Influence of initial solid-liquid interface morphology on further microstructure evolution during directional solidification
作者： Dongmei Liu , Xinzhong Li , Yanqing Su , Jingjie Guo , Liangshun Luo
DOI: 10.1007/S00339-012-7234-6
关键词: Directional solidification 、 Materials science 、 Solid liquid 、 Solidification microstructure 、 Composite material 、 Thermal 、 Alloy 、 Microstructure 、 Metallurgy
摘要: Preparation of the initial solid–liquid interface on which growth is started a very critical step in directional solidification experiments. Dedicated experiments concerning preparation morphology and its influence further directionally solidified microstructure were performed Cu-20 wt% Sn peritectic alloy Bridgman-type furnace. To verify interface, steady-state dendritic was interrupted by thermal stabilization ranging from 0 to 1 h prior quenching. With duration increase, degenerated cellular finally planar. state microstructure, at low pulling rate μm/s with different morphologies. The affects solute redistribution formation coupled structure subsequent process.
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