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

Abstract

Thermal diffusivity and thermal conductivity are important parameters for determining products thermal work conditions and production parameters for high quality products. There is two main method for determining these parameters: steady-state and transient measurement methods. Laser Flash Method (LFA) is a nonsteady-state measuring method which is widely used for measuring thermal diffusivity (α) of solid homogeneous and opaque materials. In this study, thermal diffusivity of A383.1 aluminum alloy determined with laser flash method depend on temperature. For this, 25.4 mm diameter and 1 mm thickness experiment specimens prepared from A383.1 aluminum alloy and measured their thermal diffusivity with LFA method at 30 C° to 400 C°. For calculating thermal conductivity (λ) of materials, test specimen’s density (ρ) measured with helium pycnometer and heat capacity (Cp) measured with Differential Scanning Calorimeter (DSC) test device. Thermal diffusivity and thermal conductivity results obtained from tests and calculations presented systematically in this paper. 

Keywords

• Laser flash method,Thermal diffusivity,Thermal conductivity,Aluminum alloys,Differential Scanning calorimeter

References

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