1 results listed
In this study, the effect of zirconium on the recrystallization resistance and mechanical properties of an AlMg-Si alloy was investigated. Zr was added in an amount of 0.1% and 0.2% Zr by weight. Alloys produced by vertical direct chill casting method were cold deformed by 70% in thickness. Deformed alloys were annealed at 500 °C for 10 and 30 min., which is close to the preheating temperature used in the extrusion process. Then, the alloys were prepared metallographically and the % -recrystallization volumes were determined by image analysis. The alloys in the form of billets were subjected to the extrusion process in the form of a hollow profile and then the tensile specimens were taken and subjected to tensile tests at room temperature. The fracture surfaces of the tensile specimens were investigated by scanning electron microscope and the fracture mechanisms were investigated depending on the Zr content. Experimental results show that the recrystallization resistance of the alloy was increased even at a high annealing temperature of 500 ° C with the increase of the Zr content. It was also seen that the strength values increased with the increase of Zr ratio in the extruded alloys.
International Conference of Advanced Materials and Manufacturing Technologies
ICAMT
Fulya Kahriman
Muzaffer Zeren