Phase transformation and microstructure study of the as-cast Cu-rich Cu-Al-Mn ternary alloys

Autor: Holjevac-Grgurić T., Manasijević D., Kožuh S., Ivanić I., Balanović Lj., Anžel I., Kosec B., Bizjak M., Knežević M., Gojić M.
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Journal of Mining and Metallurgy. Section B: Metallurgy, Vol 53, Iss 3, Pp 413-422 (2017)
Druh dokumentu: article
ISSN: 1450-5339
2217-7175
DOI: 10.2298/JMMB170809039H
Popis: Four Cu-rich alloys from the ternary Cu-Al-Mn system were prepared in the electric-arc furnace and casted in cylindrical moulds with dimensions: f=8 mm and length 12 mm. Microstructural investigations of the prepared samples were performed by using optical microscopy (OM) and scanning electron microscopy, equipped by energy dispersive spectroscopy (SEM-EDS). Assignation of crystalline phases was confirmed by XRD analysis. Phase transition temperatures were determined using simultaneous thermal analyzer STA DSC/TG. Phase equilibria calculation of the ternary Cu-Al-Mn system was performed using optimized thermodynamic parameters from literature. Microstructure and phase transitions of the prepared as-cast alloys were investigated and experimental results were compared with the results of thermodynamic calculations.
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