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Mathematical analysis of the heat measured by a power-compensated differential scanning calorimeter during the solidification of a multiphase alloy

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Abstract

The determination of the solidification characteristics of alloys using differential scanning calorimetry (DSC) is difficult because of the unknowns associated with the kinetic of phase transformations and the thermal resistance between the sample and the temperature measuring device. This paper shows how appropriate assumptions coupled with a thermodynamic software package and an accurate mathematical analysis of a power-compensated DSC, can enable a direct comparison between the experimental and the theoretical heat evolutions obtained during the solidification of a multiphase alloy. This comparison is helpful in order to assess the thermodynamic database and to validate the different assumptions made in the solidification model.

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Acknowledgements

Financial assistance received from the Natural Sciences and Engineering Research Council of Canada (NSERC), Rio-Tinto-Alcan (RTA) and Fonds québécois de la recherche sur la nature et les technologies by the intermediary of the Aluminium Research Centre (REGAL) is gratefully acknowledged. The authors would also like to express their deepest gratitude to professor X. Grant Chen from the Université du Québec à Chicoutimi.

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Authors and Affiliations

  1. Department of Mining, Metallurgy and Materials Engineering, Aluminum Research Center – REGAL, Laval University, 1065, Ave de la Médecine, Quebec, G1V 0A6, Canada

    Daniel Larouche & Mousa Javidani

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  1. Daniel Larouche
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  2. Mousa Javidani
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Correspondence to Daniel Larouche.

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Larouche, D., Javidani, M. Mathematical analysis of the heat measured by a power-compensated differential scanning calorimeter during the solidification of a multiphase alloy. J Therm Anal Calorim 122, 197–205 (2015). https://doi.org/10.1007/s10973-015-4760-4

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  • DOI: https://doi.org/10.1007/s10973-015-4760-4

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