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ARTICLE

Thermal Analysis by Means of Differential Scanning Calorimetry of the Characteristic Thermodynamic Temperatures of a Cu-Zr-Al Bulk Metallic Glass

Yanhong Li^*, Bing Li, Xinhui Fan, Ke Yang, Xin Wang
Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Material and Chemical Engineering, Xi’an Technological University, Xi’an, 710021, China
* Corresponding Author: Yanhong Li. Email:
(This article belongs to this Special Issue: EFD and Heat Transfer III)

Fluid Dynamics & Materials Processing 2022, 18(1), 71-80. https://doi.org/10.32604/fdmp.2022.017922

Received 17 June 2021; Accepted 12 August 2021; Issue published 10 November 2021

Abstract

In this study a Cu₄₃Zr₄₈Al₉ bulk metallic glass prepared by the copper mold casting method is considered. In recent years, Cu-Zr-Al systems like this have enjoyed widespread attention due to their high strength, high hardness, high corrosion resistance and low cost. Here samples of this substance are studied using DSC (Differential scanning calorimetry) to determine the effect of different test conditions (heating rate, sample mass, sample specific surface area and sample crystal phase) on the characteristic thermodynamic temperature of the bulk metallic glass. Experimental results show that almost all of the five characteristic thermodynamic temperatures (T_g, T_x, T_p, T_m, T_l) of this substance have higher values when the heating rate is increased. The influence of the variation of sample mass, sample specific surface area and sample crystal phase on the amorphous alloy characteristic temperature is very weak. lower the heating rate, the more developed the crystalline phase in the amorphous alloy will be.

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Keywords

Cu-Zr-Al amorphous; influence factors; characteristic thermodynamic temperature; DSC

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