Transformation studies in ALZnMg alloys by calorimetric methods

The possibilities of calorimetric methods like DSC and heat flow microcalorimetry for transformation studies in Aluminium alloys are demonstrated. The influence of pre-existing nuclei upon decomposition rate at various temperatures is described; unassisted nucleation of equilibrium precipitates seem...

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Veröffentlicht in:	Thermochimica acta 1985-10, Vol.94 (1), p.93-104
Hauptverfasser:	Lacom, W., Degischer, H.P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Cross-disciplinary physics: materials science rheology Exact sciences and technology Materials science Metals, semimetals and alloys Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics Specific materials Treatment of materials and its effects on microstructure and properties
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Zusammenfassung:	The possibilities of calorimetric methods like DSC and heat flow microcalorimetry for transformation studies in Aluminium alloys are demonstrated. The influence of pre-existing nuclei upon decomposition rate at various temperatures is described; unassisted nucleation of equilibrium precipitates seems to be confined to a narrow temperature range. Equilibrium precipitates of small size are dissolved simultaneously with metastable phases, thereby complicating the interpretation of DSC-curves.
ISSN:	0040-6031 1872-762X
DOI:	10.1016/0040-6031(85)85249-7