Journal of Theoretical
and Applied Mechanics

49, 4, pp. 1019-1028, Warsaw 2011

Identification of alloy latent heat using the data of thermal and differential analysis

Bohdan Mochnacki, Romuald Szopa
Thermal and differential analysis (TDA) is often used as a tool for quantitative estimation of solidification parameters of alloys (e.g. temperatures corresponding to the beginning and the end of phase change, kinetics of latent heat evolution, etc). TDA system offers a possibility of observation of the cooling (heating) rate, which means that the course of derivative $ \partial T/\partial t$ can be analyzed. In this paper, the identification of alloy latent heat on the basis of additional information resulting from TDA measurements is discussed. At the stage of numerical modelling, the finite difference method (FDM) is used, the examples of computations are also shown.
Keywords: solidification process; latent heat identification; numerical methods