Thermophysical Properties of Directionally Solidified the Zn-Mg-Al Eutectic Alloy and the Effect of Growth Rates on Electrical Properties

Ümit Bayram

doi:10.17776/csj.1565431

EN

Thermophysical Properties of Directionally Solidified the Zn-Mg-Al Eutectic Alloy and the Effect of Growth Rates on Electrical Properties

Abstract

The study aimed to investigate the effect of growth rates (V) on the electrical properties of a Zn–3.0 Mg–2.5 Al (wt.%) eutectic alloy. The alloy was directionally solidified at four different growth rates ranging from 8.28 to 164.12 μm/s. Directional solidification experiments were conducted using a Bridgman-type solidification furnace, which was employed for controlled solidification and minimizing undesirable casting defects, following the alloy's production and casting process. The electrical resistivity (ρ) of the samples, measured using the Four-Point Probe Method (FPPM) available in the laboratory, exhibited an increasing trend ranging from 72.80 to 96.20 (nΩm) with rising growth rates. In other words, the electrical conductivity of the Zn–Mg–Al eutectic alloy varies inversely with the growth rate. Additionally, the thermophysical properties of the eutectic alloy in the casting phase were determined using differential scanning calorimetry (DSC): ΔHf (the fusion enthalpy), ΔCp (the specific heat) and TM (the melting point) (26.69 J/g, 0.043 J/gK, 618.92 K, respectively). The results obtained for the Zn–Mg–Al eutectic alloy reveal that, when compared to Zn-Al-based alloys produced under similar experimental conditions, the elements comprising the alloy and mass proportions lead to microstructural changes, which in turn affect its electrical conductivity.

Keywords

Thanks

The researcher is grateful to Professor Necmettin Maraşlı and his team for their support in conducting the experimental parts of the study in the Solid-State Physics-I laboratory.

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Details

Primary Language

English

Subjects

Material Physics

Journal Section

Research Article

Authors

Ümit Bayram ^*
0000-0001-8760-8024
Türkiye

Publication Date

March 25, 2025

Submission Date

October 11, 2024

Acceptance Date

January 3, 2025

Published in Issue

Year 2025 Volume: 46 Number: 1

DOI

https://doi.org/10.17776/csj.1565431

IZ

https://izlik.org/JA75TU92HG

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RIS / Bibtex

APA

Bayram, Ü. (2025). Thermophysical Properties of Directionally Solidified the Zn-Mg-Al Eutectic Alloy and the Effect of Growth Rates on Electrical Properties. Cumhuriyet Science Journal, 46(1), 132-141. https://doi.org/10.17776/csj.1565431

Öz

Thermophysical Properties of Directionally Solidified the Zn-Mg-Al Eutectic Alloy and the Effect of Growth Rates on Electrical Properties

Abstract

Keywords

Thanks

References

Details

Primary Language

Subjects

Journal Section

Authors

Publication Date

Submission Date

Acceptance Date

Published in Issue

DOI

IZ

Cite