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Physics of Metals and Metallography

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01.12.2021 | STRUCTURE, PHASE TRANSFORMATIONS, AND DIFFUSION

Phase Components, Microstructures, and Mechanical Properties of AlCoCrVX (X = Fe, Ni, and Cu) High-Entropy Alloys

verfasst von: J. J. Yi, L. Wang, M. Q. Xu, L. Yang

Erschienen in: Physics of Metals and Metallography | Ausgabe 13/2021

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Abstract

A series of 3d transition metal high-entropy alloys, AlCoCrVX (X= Fe/Ni/Cu), were prepared by a vacuum arc-melting, and their phase components, microstructures, and compressive properties were investigated. The phase components of the alloys with X = Fe and Ni belonged to the BCC phase, while that of the alloy with X = Cu was composed of a typical BCC + FCC dual phase. The added Cu mainly distributed in the interdendrites while the Fe and Ni distributed in the dendrites. Moreover, the alloy with X = Cu possesses a good synergy in strength and plasticity (ultimate strength: 2300 MPa, plastic strain: 5%) compared to the alloy with X = Fe, Ni, which might stem from the impingement role of netlike Cu-rich FCC interdendrites on crack propagation.

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Titel: Phase Components, Microstructures, and Mechanical Properties of AlCoCrVX (X = Fe, Ni, and Cu) High-Entropy Alloys
verfasst von: J. J. Yi
L. Wang
M. Q. Xu
L. Yang
Publikationsdatum: 01.12.2021
Verlag: Pleiades Publishing
Erschienen in: Physics of Metals and Metallography / Ausgabe 13/2021
Print ISSN: 0031-918X
Elektronische ISSN: 1555-6190
DOI: https://doi.org/10.1134/S0031918X21130172

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