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Chatelier C, Anand K, Gille P, De Weerd MC, Ledieu J, Fournée V, Resta A, Vlad A, Garreau Y, Coati A, Gaudry É. Revealing the Epitaxial Interface between Al 13Fe 4 and Al 5Fe 2 Enabling Atomic Al Interdiffusion. ACS APPLIED MATERIALS & INTERFACES 2023; 15:19593-19603. [PMID: 37018536 DOI: 10.1021/acsami.2c22886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Steel is the most commonly manufactured material in the world. Its performances can be improved by hot-dip coating with the low weight aluminum metal. The structure of the Al∥Fe interface, which is known to contain a buffer layer made of complex intermetallic compounds such as Al5Fe2 and Al13Fe4, is crucial for the properties. On the basis of surface X-ray diffraction, combined with theoretical calculations, we derive in this work a consistent model at the atomic scale for the complex Al13Fe4(010)∥Al5Fe2(001) interface. The epitaxial relationships are found to be [130]Al5Fe2∥[010]Al13Fe4 and [1 1̅0]Al5Fe2 ∥[100]Al13Fe4. Interfacial and constrained energies, as well as works of adhesion, calculated for several structural models based on density functional theory, identify the lattice mismatch and the interfacial chemical composition as main factors for the stability of the interface. Molecular dynamics simulations suggest a mechanism of Al diffusion to explain the formation of the complex Al13Fe4 and Al5Fe2 phases at the Al∥Fe interface.
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Affiliation(s)
- Corentin Chatelier
- Université de Lorraine, CNRS, Institut Jean Lamour, Campus Artem, 2 allé André Guinier, 54000 Nancy, France
- L'Orme des Merisiers, Départementale 128, Synchrotron SOLEIL, 91190 Cedex Saint-Aubin, Gif-sur-Yvette, France
| | - Kanika Anand
- Université de Lorraine, CNRS, Institut Jean Lamour, Campus Artem, 2 allé André Guinier, 54000 Nancy, France
| | - Peter Gille
- Ludwig-Maximilians-Univ., Geschwister-Scholl-Platz 1, D-80539 München, Germany
| | - Marie-Cécile De Weerd
- Université de Lorraine, CNRS, Institut Jean Lamour, Campus Artem, 2 allé André Guinier, 54000 Nancy, France
| | - Julian Ledieu
- Université de Lorraine, CNRS, Institut Jean Lamour, Campus Artem, 2 allé André Guinier, 54000 Nancy, France
| | - Vincent Fournée
- Université de Lorraine, CNRS, Institut Jean Lamour, Campus Artem, 2 allé André Guinier, 54000 Nancy, France
| | - Andrea Resta
- L'Orme des Merisiers, Départementale 128, Synchrotron SOLEIL, 91190 Cedex Saint-Aubin, Gif-sur-Yvette, France
| | - Alina Vlad
- L'Orme des Merisiers, Départementale 128, Synchrotron SOLEIL, 91190 Cedex Saint-Aubin, Gif-sur-Yvette, France
| | - Yves Garreau
- L'Orme des Merisiers, Départementale 128, Synchrotron SOLEIL, 91190 Cedex Saint-Aubin, Gif-sur-Yvette, France
- CNRS, Matériaux et Phénomènes Quantiques Paris, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, Univ. Paris-Cité, Case courrier 7021, F-75205 Cedex 13 Paris, France
| | - Alessandro Coati
- L'Orme des Merisiers, Départementale 128, Synchrotron SOLEIL, 91190 Cedex Saint-Aubin, Gif-sur-Yvette, France
| | - Émilie Gaudry
- Université de Lorraine, CNRS, Institut Jean Lamour, Campus Artem, 2 allé André Guinier, 54000 Nancy, France
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