Phase Formation of Novel Al-Mg-Zn-Cu-Si Lightweight High Entropy Alloy

Godson Nyaforkpa; Mohamed Emam; Mohamed Abdel Hady Gepreel

doi:10.4028/p-UIa1wc

Paper Titles

Preface

Microstructure and Super-Elasticity of Fe-33Mn-17Al-8.5Ni (at. %) Alloy for Structural Applications
p.3

Phase Formation of Novel Al-Mg-Zn-Cu-Si Lightweight High Entropy Alloy
p.9

Effect of Heat Treatment on Formability of AZ61 Magnesium Alloys
p.15

Modeling and Optimization of Turning Hastelloy C-276 under Sustainable Machining Environments
p.21

Analysis of the Curing Behavior of Cyanate/Epoxy Resins for Fusion Magnets
p.35

Rheological and Thermal Characterization of Glycerol Monostearate (GMS) as Compatibilizer on Polyethylene-Palm Stearin Composite
p.41

Glass Transition Temperature and Mechanical Properties of Poly(Ethylene Carbonate)/Organoclay Composites
p.49

Effect of Rubber Formula on Performance of Natural Rubber Based Foam for Insulating Ceiling Board Application
p.55

HomeSolid State PhenomenaSolid State Phenomena Vol. 356Phase Formation of Novel Al-Mg-Zn-Cu-Si...

Phase Formation of Novel Al-Mg-Zn-Cu-Si Lightweight High Entropy Alloy

Abstract:

In this paper, a novel lightweight and low-cost Al₃₅Mg₂₀Zn₁₅Cu₁₀Si₂₀ at. % (Al_26.17Mg_13.47Zn_27.18Cu_17.61Si_15.57wt.%) has been successfully designed, produced, and characterized. The thermophysical parameters were used to understand the phases associated with this alloy that show a low density of 3.42 g/cm³. The designed alloy was manufactured using both the arc and the muffle furnace. The alloy was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM) equipped with an energy dispersive spectrometer (EDS). The alloy is characterized by a multiphase microstructure with three major phases including Mg₂Si intermetallic phase and eutectic. The volume fraction of the eutectic and the intermetallic phases are 37.83 and 34.99 respectively. The heat capacities of the alloy were also determined by means of differential scanning calorimetry (DSC). The alloy provides a high latent heat of up to 124 J/g, which is one of the highest among the high-temperature metallic materials. The present work provides valuable information for researchers wishing to design and manufacture industrial-grade high-entropy alloys (HEAs).

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Periodical:

Solid State Phenomena (Volume 356)

Pages:

9-14

DOI:

https://doi.org/10.4028/p-UIa1wc

Citation:

Cite this paper

Online since:

March 2024

Authors:

Godson Nyaforkpa*, Mohamed Emam, Mohamed Abdel Hady Gepreel

Keywords:

Alloy Design, Eutectic High Entropy Alloy, Lightweight, Microstructure

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* - Corresponding Author

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