Publication: The observation of grain boundary phases in Al-Zn-Mg alloys containing dispersoids
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Uğuz, Agah
Bayram, Ali
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Metall-Verlag GMBH
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Abstract
Grain boundary particles of a ternary, a Mn- containing and a Zr-containing Al-Zn-Mg alloys have been investigated. In the Mn-containing alloy, dispersoids are encountered the grains as well as at the grain boundaries (GBs) together with the equilibrium eta-phase. Large Mn-bearing particles are also present at the grain boundaries in this alloy, however they do not pin the GBs as the Zr-bearing particles. The distribution of the Zr-bearing dispersoids is observed to be irregular both in the grain itself and at the grain boundaries. These effectively impede grain growth.
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Keywords
Metallurgy and metallurgical engineering, Precipitation kinetics, Microstructural evolution, Aluminum-alloys, Growth, Nucleation, Crystal structure, Energy dispersive spectroscopy, Grain boundaries, Grain growth, Hardness, Impurities, Phase equilibria, Precipitation (chemical), Transition metals, Transmission electron microscopy, X ray analysis, Dispersoids, Intermetallic phases
Citation
Uğuz, A. ve Bayram, A. (2003). “The observation of grain boundary phases in Al-Zn-Mg alloys containing dispersoids”. Metall, 58(1-2), 44-46.