Phase Transformation Analysis of the Amorphous Mg72Zn24Ca4 Alloy

• Autorzy: Lelito J.

Identyfikatory

DOI

10.24425/afe.2020.133324

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

Mg-Zn-Ca alloy; amorphous alloy; metallic glass; crystallization

PL

stop Mg-Zn-Ca; stop amorficzny; szkło metaliczne; krystalizacja

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2020
• Tom: Vol. 20, iss. 3
• Strony: 21--24
• Opis fizyczny: Bibliogr. 8 poz., rys., wykr.

Twórcy

autor

Lelito J.

• AGH – University of Science and Technology, Faculty of Foundry Engineering, Kraków, Poland

Bibliografia

• [1] Laws, K.J., Shamlaye, K.F., Cao, J.D., Scicluna, J.P. & Ferry, M. (2012). Locating new Mg-based bulk metallic glasses free of rare earth elements. Journal of Alloys and Compounds. 542, 105-110. DOI: https://doi.org/10.1016/j.jallcom. 2012.07.028.
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• [3] Gu, X., Shiflet, G.J., Guo, F.Q. & Poon S.J. (2005). Mg–Ca–Zn Bulk Metallic Glasses with High Strength and Significant Ductility. Journal of Materials Research. 1935-1938. DOI: https://doi.org/10.1557/JMR.2005.0245.
• [4] Greer, A.L.. (1995). Metallic Glasses. Science. 267, 1947-1953. DOI: http://dx.doi.org/10.1126/science.267.5206.1947.
• [5] Zheng, Y. (2015). Magnesium alloys as degradable biomaterials. CRC Press.
• [6] Lu, Y. (2014). Microstructure and degradation behaviour of Mg-Zn (-Ca) alloys. Published doctoral dissertation, University of Birmingham.
• [7] Zberg, B., Uggowitzer, P.J. & Löffler, J.F. (2009). MgZnCa glasses without clinically observable hydrogen evolution for biodegradable implants. Nature Materials. 8, 887-891. DOI: 10.1038/NMAT2542.
• [8] Hui, X., Sun, G.Y., Zhang, C.M., Liu, S.N., Wang, E.R., Wang, M.L., Chen, G.L. (2010). Mg-Cu-Y-Ag bulk metallic glasses with enhanced compressive strength and plasticity. Journal of Alloys and Compounds. 504S, S6-S9. DOI: http://dx.doi.org/10.1016/j.jallcom.2010.03.161.

Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)