You are here: all Journals and Issues→ Journal→ Issue→ Article
Discontinuous deformation caused by the change of microstructure of AMg6 alloy
The results of investigation the effect of microstructure on the jerky flow characteristics is presented. The structure-sensitive effects of jerky flow is found, namely, transition from smooth to stepped deformation curve of cold-rolling AMg6 alloy with increasing of annealing temperature. This transition has two aspects: (i) appearance of deformation jump of 3–4 % magnitude at earlier stage of the first recrystallization (after the annealing at 220 C) and (ii) sharp growth of the jump account and fraction of jerky flow in the narrow temperature interval of annealing (250–270 C) in which there is transition of metastable -phase to stable -phase. It is established that dissolution of the Guinier-Preston zones in recrystalline grained structure of the alloy in temperature interval 40–72 C creates transition from stepped to smooth deformation curves.
aluminum-magnesium alloy, unstable deformation, dislocations, precipitates, the Guinier-Preston zones
Section of issue
Для корректной работы сайта используйте один из современных браузеров. Например, Firefox 55, Chrome 60 или более новые.