Determination of Thermal Conductivities of Solid and Liquid Phases for Rich-Sn Compositions of Sn-Mg Alloy


MEYDANERİ TEZEL F. , Gunduz M., Ozdemir M., SAATÇİ B.

METALS AND MATERIALS INTERNATIONAL, cilt.18, ss.77-85, 2012 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 18 Konu: 1
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1007/s12540-012-0010-5
  • Dergi Adı: METALS AND MATERIALS INTERNATIONAL
  • Sayfa Sayıları: ss.77-85

Özet

The variations of thermal conductivities of solid phases versus temperature for pure Sn and Sn-1 wt% Mg, Sn-2 wt% Mg, and Sn-6 wt% Mg binary alloys were measured with a radial heat flow apparatus. Thermal conductivity variations versus temperature for pure Sn and Sn-1 wt% Mg, Sn-2 wt% Mg, and Sn-6 wt% Mg binary alloys were found to be 60.60 +/- 3.63, 61.99 +/- 3.71, 68.29 +/- 4.09, and 82.04 +/- 4.92 W/Km, respectively. The thermal conductivity ratios of liquid phase to solid phase for pure Sn and eutectic Sn-2 wt% Mg alloy at their melting temperature were found to be 1.11 and 1.08, respectively, with a Bridgman type directional solidification apparatus. Thus the thermal conductivities of liquid phases for pure Sn and eutectic Sn-2 wt% Mg binary alloy at their melting temperature were evaluated to be 67.26 +/- 4.03 and 73.75 +/- 4.42 W/Km, respectively, by using the values of solid phase thermal conductivities and the thermal conductivity ratios of the liquid phase to the solid phase.