Quantification of the microconstituents formed during solidification by the Newton thermal analysis method
Por:
Cruz H., Gonzalez C., Juárez A., Herrera M., Juarez J.
Publicada:
1 ene 2006
Resumen:
This work was intended to explore the reliability of the Newtonian thermal analysis method as a tool for the quantification of the amount of alloy microconstituents formed during solidification as observed at room temperature in alloy systems without phase transformations in the solid state. This technique was applied to three hyper eutectic Pb-Sn alloys with different primary phase content using different approaches to determine the time of start of solidification and for the zero curve calculation. Quantitative metallography was used to determine the primary phase content in the experimental probes. The outcome of this work shows that the use of Newton method for prediction of the amount of microconstituents formed during solidification obtain good results in two of the three cases under study suggesting that this method is not reliable. © 2006 Elsevier B.V. All rights reserved.
Filiaciones:
Departamento de Ingeniería Metalúrgica, Facultad de Química, UNAM, Circuito Exterior Edif. D, Cd. Univ., 04510 México D.F., Mexico
CIATEQ A.C., Calz. Del Retablo 150, Col. Fovissste, 76150 Queretaro Qro., Mexico
CINVESTAV, IPN, Unidad Saltillo, Carretera Saltillo-Monterrey Km 13, 25000 Saltillo, Coahuila, Mexico
Instituto de Investigaciones en Materiales, UNAM, Circuito Exterior, Cd. Universitaria, 04510 México D.F., Mexico
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