Thermal properties and eutectic crystallization in lead
a:2:{s:4:"TYPE";s:4:"TEXT";s:4:"TEXT";s:49:"S.V. Stankus, R.A. Khairulin, and P.V. Tyagel’sky";}
Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
Pages: 145–151
Abstract
Thermal properties of eutectic Pb83Mg17 alloy were studied in solid and liquid states at the temperatures of up to 825 K by sample exposure by a narrow beam of gamma-radiation. Changes of specific volume at melting-crystallization were determined for the first time. Distribution of density over the sample height was measured. It is shown that eutectic alloy of Pb(Mg system is exposed to segregation. Non-equilibrium crystallization of a liquid alloy to metastable phases was found out. Density changes and characteristic temperatures of this process were determined. Volumetric alterations at transition of non-equilibrium inclusions to the equilibrium state were measured.
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