Thermal analysis and microstructural characterization of Mg-Al-Zn system alloys

The influence of Zn amount and solidification rate on the characteristic temperature of the evaluation of magnesium dendrites during solidification at different cooling rates (0.6-2.5°C) were examined by thermal derivative analysis (TDA). The dendrite coherency point (DCP) is presented with a novel...

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Veröffentlicht in:IOP conference series. Materials Science and Engineering 2015-11, Vol.95 (1), p.12006
Hauptverfasser: Król, M, Ta ski, T, Sitek, W
Format: Artikel
Sprache:eng
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Zusammenfassung:The influence of Zn amount and solidification rate on the characteristic temperature of the evaluation of magnesium dendrites during solidification at different cooling rates (0.6-2.5°C) were examined by thermal derivative analysis (TDA). The dendrite coherency point (DCP) is presented with a novel approach based on second derivative cooling curve. Solidification behavior was examined via one thermocouple thermal analysis method. Microstructural assessments were described by optical light microscopy, scanning electron microscopy and energy dispersive X-ray spectroscopy. These studies showed that utilization of d2T dt2 vs. the time curve methodology provides for analysis of the dendrite coherency point
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/95/1/012006