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Calorimetric Control of Aluminium Casting Quality

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Abstract

Differential scanning calorimetry (DSC) combined with an entrained droplet technique [1] has been successfully used on a series of melt spun alloys with deliberate impurity additions to study the nucleation related aspects of secondary phase selection during solidification of dilute Al alloys. This paper illustrates how DSC is a sensitive tool for determining the effect impurities can have on the nucleation of secondary phases, and hence material properties of these alloys. Stepped cooling/isothermal holding profile DSC has also been used in preliminary investigations of the thermodynamic range of formation of the Al—Fe eutectic phases and their nucleation and growth solidification kinetics.

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Authors and Affiliations

  1. Oxford Centre for Advanced Materials and Composites, Department of Materials, University of Oxford, Parks Rd., Oxford, OX1 3PH

    C. M. Allen, K. A. Q. O'Reilly & B. Cantor

  2. Banbury Laboratory, Alcan International Ltd., Southam Rd., OX16 7SP, Banbury, Oxon., UK

    P. V. Evans

Authors
  1. C. M. Allen
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  2. K. A. Q. O'Reilly
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  3. B. Cantor
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  4. P. V. Evans
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Allen, C.M., O'Reilly, K.A.Q., Cantor, B. et al. Calorimetric Control of Aluminium Casting Quality. Journal of Thermal Analysis and Calorimetry 57, 391–400 (1999). https://doi.org/10.1023/A:1010118700766

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  • DOI: https://doi.org/10.1023/A:1010118700766

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