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The Effect of Sn Addition on Zn-Al-Mg Alloy; Part I: Microstructure and Phase Composition

In this study, the addition of Sn on the microstructure of Zn 1.6 wt.% Al 1.6 wt.% Mg alloy was studied. Currently, the addition of Sn into Zn-Al-Mg based systems has not been investigated in detail. Both as-cast and annealed states were investigated. Phase transformation temperatures and phase comp...

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Detalles Bibliográficos
Autores principales: Gogola, Peter, Gabalcová, Zuzana, Kusý, Martin, Suchánek, Henrich
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8465561/
https://www.ncbi.nlm.nih.gov/pubmed/34576634
http://dx.doi.org/10.3390/ma14185404
Descripción
Sumario:In this study, the addition of Sn on the microstructure of Zn 1.6 wt.% Al 1.6 wt.% Mg alloy was studied. Currently, the addition of Sn into Zn-Al-Mg based systems has not been investigated in detail. Both as-cast and annealed states were investigated. Phase transformation temperatures and phase composition was investigated via DSC, SEM and XRD techniques. The main phases identified in the studied alloys were η(Zn) and α(Al) solid solutions as well as Mg(2)Zn(11), MgZn(2) and Mg(2)Sn intermetallic phases. Addition of Sn enabled the formation of Mg(2)Sn phase at the expense of Mg(x)Zn(y) phases, while the overall volume content of intermetallic phases is decreasing. Annealing did not change the phase composition in a significant way, but higher Sn content allowed more effective spheroidization and agglomeration of individual phase particles.