Determining Thermal Properties of A383.1 Aluminum Alloy Depends on Temperature

Abstract

Thermal diffusivity and thermal conductivity areimportant parameters for determining products thermal work conditions andproduction parameters for high quality products. There is two main method fordetermining these parameters: steady-state and transient measurement methods.Laser Flash Method (LFA) is a nonsteady-state measuring method which is widely usedfor measuring thermal diffusivity (α) of solid homogeneous and opaquematerials. In this study, thermal diffusivity of A383.1 aluminum alloydetermined with laser flash method depend on temperature. For this, 25.4 mmdiameter and 1 mm thickness experiment specimens prepared from A383.1 aluminumalloy and measured their thermal diffusivity with LFA method at 30 C° to 400C°. For calculating thermal conductivity (λ) of materials, test specimen’sdensity (ρ) measured with helium pycnometer and heat capacity (Cp) measuredwith Differential Scanning Calorimeter (DSC) test device. Thermal diffusivityand thermal conductivity results obtained from tests and calculations presentedsystematically in this paper.