Temperature Dependence of Density and Thermal Expansion of Wrought Aluminum Alloys 7041, 7075 and 7095 by Gamma Ray Attenuation Method

Abstract

The gamma quanta attenuation studies have been carried out to determine mass attenuation coefficients of 7041, 7075 and 7095 wrought aluminum alloys. The temperature dependence of linear attenuation coefficient, density and thermal expansion of these wrought aluminum alloys in the temperature range 300 K - 850 K have been reported. The meas- urements were done by using a gamma ray densitometer designed and fabricated in our laboratory. The data on varia- tion of density and linear thermal expansion with temperature have been represented by linear equations. Volume ther- mal expansion coefficients have been reported. Keywords: