Monitoring of directional solidification with simultaneous measurements of electrical resistance and temperatureMihael Brunčko
, Ivan Anžel
, Alojz Križman
, 2003, original scientific article
Abstract: WE present the efficiency of simultaneous electrical resistance and temperature (ERT) measurements for monitoring the position, X, and the growth rate, V, of the solidification front during the directional solidification of alloys. On alaboratory device for directional solidification (Bridgman-type furnace), theeutectic Pb-Sn alloy was solidified at five different pulling rates, VP, with a constant imposed temperature gradient, GP. During directional solidification, the electrical resistance and the temperature changes were measured simultaneously in the experimental samples. The results of the experiments show that simultaneous measurement of ERT enables not only the determination of the average growth rate, V, during directional solidificationbut also its fluctuation over the total measurement length of the sample.
Keywords: metallurgy, Pb-Sn alloy, directional solidification, electrical resistance measurements, temperature measurements
Published: 01.06.2012; Views: 849; Downloads: 14
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