In situ investigation of intermetallic compound formation during the solid Fe-liquid Al reaction by X-ray diffraction and tomography

Benjamin Leflon; Thibaut Chaise; Christophe Le Bourlot; Nicolas Mary; Rafael Vargas; Wolfgang Ludwig; Shun Tokita; K oichi Suzuki; Yutaka S. Sato; Sylvain Dancette

doi:10.1016/j.matchar.2026.116552

May 1, 2026Materials CharacterizationOpen Access

In situ investigation of intermetallic compound formation during the solid Fe-liquid Al reaction by X-ray diffraction and tomography

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Key Points

The study aims to explore the formation of intermetallic compounds during the solid Fe-liquid Al reaction using in situ techniques.
Utilized X-ray diffraction and tomography for real-time analysis of compound formation.
Monitored the evolution of intermetallics Fe2Al5, Fe4Al13, FeAl, and FeAl2 under varying conditions.
Fe2Al5 and Fe4Al13 were detected simultaneously, followed by the formation of FeAl and FeAl2 under specific conditions.
Irregular tongue-like morphology of Fe2Al5 was observed during the reaction process.
Dissolution was found to oppose volume diffusion at elevated temperatures after an initial delay.

Implication

In situ investigation examines intermetallic compound formation in solid Fe and liquid Al, suggesting implications for material properties.

Abstract

• Fe 2 Al 5 and Fe 4 Al 13 appear simultaneously, followed by FeAl then FeAl 2 in some conditions. • Development of the irregular tongue like morphology of Fe 2 Al 5 observed in real time. • Dissolution opposes volume diffusion at higher temperatures after a delay. • Net movement of compound layer towards Al explained by a difference in molar volumes.

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Cite This Study

Leflon et al. (2026) studied this question.

synapsesocial.com/papers/6a1bd0525783ba022b6fc211 https://doi.org/10.1016/j.matchar.2026.116552

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In situ investigation of intermetallic compound formation during the solid Fe-liquid Al reaction by X-ray diffraction and tomography

Key Points

Implication

Abstract

Discussion

Cite This Study

In situ investigation of intermetallic compound formation during the solid Fe-liquid Al reaction by X-ray diffraction and tomography

Key Points

Implication

Abstract

Discussion

Cite This Study

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