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Journal of Materials Engineering and Performance
Erschienen in: Journal of Materials Engineering and Performance 7/2019

02.07.2019

Effect of Cobalt Content on Thermal, Mechanical, and Microstructural Properties of Al0.4FeCrNiCox (x = 0, 0.25, 0.5, 1.0 mol) High-Entropy Alloys

verfasst von: Saurav Kumar, Amar Patnaik, Ajaya Kumar Pradhan, Vinod Kumar

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 7/2019

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Abstract

Al0.4FeCrNiCox (x = 0, 0.25, 0.5, 1.0 mol) high-entropy alloys are developed by arc melting route to investigate the effect of cobalt content on thermal, mechanical, and microstructural properties. The phase, microstructure, and chemical composition are analyzed using x-ray diffraction, transmission electron microscope, and scanning electron microscope with attached energy-dispersive x-ray spectrometer. The obtained results have shown that the Al0.4FeCrNiCox (x = 0-0.5 mol) high-entropy alloys form a simple FCC + BCC-type solid solution and Al0.4FeCrNiCox=1 HEA forms a single-phase FCC structure. The compressive yield strength, microhardness, and thermal conductivity are observed to decrease from 965.22 to 233.37 MPa, 253.6 to 155.6 HV, and from 4.87 to 2.674 W/mK, respectively, whereas the electrical resistivity is observed to increase from 150.30 to 273.74 µΩ-cm with the addition of cobalt from x = 0-1 mol. Differential scanning calorimetry analysis has indicated that the Al0.4FeCrNiCox (x = 0, 0.25, 0.5, 1.0 mol) high-entropy alloys are thermally stable up to 1000 °C.
Vorheriger Artikel Effects of Process Control Agents on Characteristics of Cu-Ta Nanocomposite during Milling and Subsequent Sintering
Nächster Artikel Improved Electrochemical Performance of Plasma Electrolytic Oxidation Coating on Titanium in Simulated Body Fluid

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Metadaten
Titel
Effect of Cobalt Content on Thermal, Mechanical, and Microstructural Properties of Al0.4FeCrNiCox (x = 0, 0.25, 0.5, 1.0 mol) High-Entropy Alloys
verfasst von
Saurav Kumar
Amar Patnaik
Ajaya Kumar Pradhan
Vinod Kumar
Publikationsdatum
02.07.2019
Verlag
Springer US
Erschienen in
Journal of Materials Engineering and Performance / Ausgabe 7/2019
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-019-04162-4

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