Thermal, Electrical, Microstructure and Microhardness Properties of the Eutectic Magnesium-Tin


Meydaneri F., SAATÇİ B.

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING, cilt.39, ss.5815-5824, 2014 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 39 Konu: 7
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1007/s13369-014-1125-4
  • Dergi Adı: ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
  • Sayfa Sayıları: ss.5815-5824

Özet

The variation of thermal conductivity with temperature for Sn-2.0 wt.% Mg eutectic alloy was measured to be 68.29 +/- 4.09 W/Km with a radial heat flow apparatus. The electrical conductivities of the sample were calculated theWiedemann-Franz-Lorenz law, Smith-Palmer equation, Bungardt-Kallenbach and Powell empirical correlations by using the thermal conductivity value, respectively. The values of enthalpy of fusion (Delta H) and the change of specific heat capacity (Delta C-p) were also obtained by differential scanning calorimeter (DSC), respectively. The microhardness value for the alloywas measured byVickersmicrohardness device. The microstructure and composition of the alloy was investigated by using SEM and EDX analysis. According to the results, the defectswhich depending on composition and temperature could increase the electrical resistivity.