Microstructural evolution of an Al–Mg–Si–Mn– Fe alloy due to Ti and P addition

Autor: Viktoria Boyko, Adelajda Polkowska, M. Warmuzek, Edward Czekaj, Krzysztof Saja, Konstantin Mikhalenkov
Rok vydání: 2021
Předmět:
Zdroj: International Journal of Materials Research. 112:695-705
ISSN: 2195-8556
1862-5282
DOI: 10.1515/ijmr-2020-7948
Popis: This paper presents the results of research on material and microstructural effects in a hypoutectic Al–Mg– Si–Mn–Fe alloy, modified by the addition of Ti and Ti + P, in two series of castings, gravity and pressure. It has been found that the use of high pressure die casting technology allows for significant improvement of mechanical properties, especially tensile strength and plasticity of the examined alloy. On the other hand, the addition of Ti and Ti + P caused different material effects. In gravity castings, the addition of Ti and Ti + P caused a decrease in strength and plasticity, while in high-pressure castings, an increase in the values of these parameters was observed. The microstructural effects related to the foundry technology and those caused by Ti and P additions were revealed, such as differences in the phase composition of the interdendritic eutectics and in the morphology and dispersion of their phase constituents: Mg2Si and α-Al(Fe,Mn)Si.
Databáze: OpenAIRE