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Synthesis and Mechanical Characterization of Binary and Ternary Intermetallic Alloys Based on Fe-Ti-Al by Resonant Ultrasound Vibrational Methods

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Laboratoire d’Electrochimie, Corrosion, Métallurgie et Chimie Minérale, Université des Sciences et de la technologie de Houari Boumediene, BP 32 El Alia 16111 Bab Ezzouar, Algeria
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Laboratoire de Mécanique et d’Acoustique, CNRS, UPR 7051, Aix-Marseille Univ, Centrale Marseille, F-13453 Marseille CEDEX 13, France
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Author to whom correspondence should be addressed.
Materials 2018, 11(5), 746; https://doi.org/10.3390/ma11050746
Received: 9 April 2018 / Revised: 24 April 2018 / Accepted: 29 April 2018 / Published: 7 May 2018
(This article belongs to the Section Structure Analysis and Characterization)
Precise but simple experimental and inverse methods allowing the recovery of mechanical material parameters are necessary for the exploration of materials with novel crystallographic structures and elastic properties, particularly for new materials and those existing only in theory. The alloys studied herein are of new atomic compositions. This paper reports an experimental study involving the synthesis and development of methods for the determination of the elastic properties of binary (Fe-Al, Fe-Ti and Ti-Al) and ternary (Fe-Ti-Al) intermetallic alloys with different concentrations of their individual constituents. The alloys studied were synthesized from high purity metals using an arc furnace with argon flow to ensure their uniformity and homogeneity. Precise but simple methods for the recovery of the elastic constants of the isotropic metals from resonant ultrasound vibration data were developed. These methods allowed the fine analysis of the relationships between the atomic concentration of a given constituent and the Young’s modulus or alloy density. View Full-Text
Keywords: binary Fe-Ti, Ti-Al, Fe-Al and ternary Fe-Ti-Al alloys; resonant ultrasound vibration; elastodynamic model; first principles calculations; inverse problem binary Fe-Ti, Ti-Al, Fe-Al and ternary Fe-Ti-Al alloys; resonant ultrasound vibration; elastodynamic model; first principles calculations; inverse problem
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Chanbi, D.; Ogam, E.; Amara, S.E.; Fellah, Z.E.A. Synthesis and Mechanical Characterization of Binary and Ternary Intermetallic Alloys Based on Fe-Ti-Al by Resonant Ultrasound Vibrational Methods. Materials 2018, 11, 746.

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