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Comparison of thermal analysis and differential thermal analysis for evaluating solid fraction evolution during solidification of Al-Si alloys

Fernandez-Calvo, Ana Isabel and Niklas, Andrea and Lacaze, Jacques Comparison of thermal analysis and differential thermal analysis for evaluating solid fraction evolution during solidification of Al-Si alloys. (2010) Materials Science Forum, 649. 493-498. ISSN 1662-9752

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Official URL: http://dx.doi.org/10.4028/www.scientific.net/MSF.649.493

Abstract

Both thermal analysis (TA) and differential thermal analysis (DTA) have been used since long to evaluate latent heat release and solid fraction evolution during solidification of metallic alloys. TA makes use of cooling curves recorded under "natural" cooling while DTA consists in recording the temperature difference between the sample temperature and an inert reference during a controlled cooling, i.e. at imposed constant cooling rate. In both cases, the solid fraction evolution is deduced from a calculation of the latent heat release as estimated by means of a heat transfer model. This paper provides a comparison of such evaluations performed on one Al-Si alloy.

Item Type:Article
HAL Id:hal-00863172
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > IK4 - Azterlan - Centro de Investigación Metalúrgica (SPAIN)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:18 Sep 2013 11:27

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