MATEC Web Conf.
Volume 224, 2018International Conference on Modern Trends in Manufacturing Technologies and Equipment (ICMTMTE 2018)
|Number of page(s)||8|
|Published online||30 October 2018|
Research of structural entropy of sheet aluminium alloys depending on annealing temperature
Samara University, Metal Technology and Aviation Material Science Department, 34, Moskovskoye shosse, Samara, 443086, Russia
2 Samara University, Metal Pressure Working, 34, Moskovskoye shosse, Samara, 443086, Russia
* Corresponding author: firstname.lastname@example.org
Sheet blanks’ structure uniformity determines their ability to sheet stamping. Level of entropy may represent the characteristic of structural uniformity. Structural entropy was received from strain curves recalculation for sheet blanks from aluminium alloys Al-2Mg and Al-6Mg are presented in the work. Stain curves were provided for blanks after cold deformation and annealing at temperatures 250, 350 И 450˚C. Estimation of grain size uniformity was made. Effect of annealing temperature on structural entropy and grain structure uniformity was found. It was shown that annealing temperature increasing leads to structural entropy decreasing. Ununiformity of grain size achieves the minimal values after annealing at temperature 350˚C for both alloys, and then ununiformity grows after annealing at temperature 450˚C.
© The Authors, published by EDP Sciences, 2018
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