Determination of the thermal properties of Al-Zn-Mg alloy

Cadirli E., Ustun E., Büyük U., Kaya H.

KOVOVE MATERIALY-METALLIC MATERIALS, cilt.59, sa.1, ss.59-68, 2021 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 59 Sayı: 1
  • Basım Tarihi: 2021
  • Doi Numarası: 10.4149/km_2021_1_59
  • Dergi Adı: KOVOVE MATERIALY-METALLIC MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Central & Eastern European Academic Source (CEEAS), Communication Abstracts, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.59-68
  • Anahtar Kelimeler: 7XXX alloys, thermal conductivity, thermal diffusivity, specific heat capacity, enthalpy of fusion
  • Erciyes Üniversitesi Adresli: Evet

Özet

In this work, the thermal conductivity, enthalpy of fusion, specific heat capacity, and thermal diffusivity of the Al-5.5Zn-2.5Mg (wt.%) ternary alloy have been investigated. Thermal conductivity of as-cast Al-5.5Zn-2.5Mg alloy was measured using comparison cut bar method in the temperature range of 323-723 K. With the increase of temperature, thermal conductivity decreased gradually in as-cast Al-5.5Zn-2.5Mg alloy. The thermal temperature coefficient was calculated from the respective graph. The enthalpy of fusion and the specific heat capacity during the transformation were also determined. Thermal diffusivity changes were calculated as a function of temperature through the obtained thermal data. It was observed that thermal diffusivity values decreased with increasing temperature.