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

Publicación

Materials Science Forum 649
Fecha de publicación

05/2010
DOI

10.4028/www.scientific.net/MSF.649.493
Tags

Aluminio, Ana Fernandez, Andrea Niklas, I+D+i, Jacques Lacaze, Materiales ligeros, Tecnologías de fundición

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.

Autores/as:

Ana Isabel Fernández Calvo (AZTERLAN), Andrea Niklas (AZTERLAN), Jacques Lacaze (CIRIMAT)

Keywords:

análisis térmico, análisis térmico diferencial, aleaciones de aluminio, cinética de solidificación

Atrás

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

Publicación

Fecha de publicación

DOI

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Autores/as:

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