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Phase Transformation Analysis of the Amorphous Mg72Zn24Ca4 Alloy

Lelito J.

Archives of Foundry Engineering

2020

Vol. 20, iss. 3

21--24

The paper presents research of metallic glass based on a Mg72Zn24Ca4 alloy. Metallic glass was prepared using induction melting and further injection on a spinning copper wheel. The X-ray diffractometer and differential scanning calorimeter (DSC) were used to investigate the phase transformation of the amorphous ribbon. The heat released in the crystallization process, during isothermal annealing, based on the differential scanning calorimeter investigation, was determined to be 166.18 Jg-1. The effect of isothermal annealing temperature on the kinetics of the amorphous alloy crystallization process using differential scanning calorimeter was investigated. For this purpose, two isothermal annealing temperatures were selected. The incubation time decreases as the temperature of the isothermal annealing increases from 300 to 252 seconds. The same relationship is visible in the case of duration of the phase transformation, which also decreases as the temperature of the isothermal annealing increases from 360 to 228 seconds. The obtained results show a significant influence of isothermal annealing temperature on the degree of phase transformation.

Bulk metallic glasses based on magnesium to potential biomedical application

Kiljan A., Nowosielski R.

Selected Engineering Problems

2015

nr 6

41--44

The paper presents some informations about materials for biomedical application. The study was performed on ternary Mg-based alloys. The Mg66Zn30Ca4 glassy alloy was prepared in the form of rods by pressure die casting method of molten alloy into water cooled copper mold. This alloy is potential material for biomedical application.