Equiaxed grain structure formation during directional solidification of a refined Al-20wt.%Cu alloy: In situ analysis of temperature gradient effects

H. Soltani,G. Reinhart,M. C. Benoudia, F. Ngomesse, M. Zahzouh,H. Nguyen-Thi

Journal of Crystal Growth（2022）

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Abstract

•Directional solidifications of refined Al-20wt.%Cu alloys were carried out.•Microstructure formation was observed in situ and in real-time by X-radiography.•The impact of temperature gradient on the grain structure formation was investigated.•Temperature Gradient Zone Melting (TGZM) effect was evidenced.•Quantitative measurements of the grain characteristics were performed.

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Key words

A1. Directional solidification,A1. Characterization,A1. Dendrites,A1. Nucleation,B1. Alloys,B1. Metals

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