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- Title
Analysis of Crystallisation Process of Cast Magnesium Alloys Based on Thermal Derivative Analysis / Analiza Procesu Krystalizacji Odlewniczych Stopów Magnezu W Oparciu O Analizę Termicznoderywacyjną.
- Authors
Król, M.; Tański, T.; Matula, G.; Snopiński, P.; Tomiczek, A.E.
- Abstract
The paper presents the results of the crystallisation process of cast magnesium alloys based on the thermal-derivation analysis. The effects of aluminium content and cooling rate on the characteristic parameters of the evaluation of magnesium dendrites during solidification at different cooling rates were investigated by thermal-derivative analysis (TDA). Dendrite coherency point (DCP) is defined with a new approach based on the second derivative cooling curve. Solidification behaviour was evaluated via one thermocouple thermal analysis method. Microstructural evaluations were characterised by light microscope, X-ray diffraction, scanning electron microscopy, and energy dispersive X-ray spectroscopy. This research revealed that utilisation of d2T/dt2 versus the time curve methodology allows for analysis of the dendrite coherency point.
- Subjects
MAGNESIUM alloys; CRYSTALLIZATION; DENDRITIC crystals; ALUMINUM; SCANNING electron microscopy; ENERGY dispersive X-ray spectroscopy
- Publication
Archives of Metallurgy & Materials, 2015, Vol 60, Issue 4, p2993
- ISSN
1733-3490
- Publication type
Article
- DOI
10.1515/amm-2015-0478