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首页> 中文期刊> 《中国有色金属学报：英文版》 >Competitive growth of high purity aluminum grains in directional solidification

Competitive growth of high purity aluminum grains in directional solidification

         
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＜正＞A self-made directional solidification setup was used to prepare high purity aluminum ingots of 100mm in diameter. The morphology of the growth interface was detected by SEM and AFM, and the grain lattice orientation was detected by XRD. The results indicate that the grains suffer competitive growth under any conditions in experiments. The lattice orientation of the preferred grains is determined by the flow field above the solid-liquid interface. The horizontal lattice position does not change during the growth process. However, the lattice orientation in the growth direction varies with the growth velocity and approaches to [100] gradually during the growth process.

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