TY - JOUR

T1 - Effect of Zn content on microstructure evolution in Al–Zn alloys processed by high‑pressure torsion

AU - Ahmed, Anwar Q.

AU - Ugi, Dávid

AU - Lendvai, János

AU - Мурашкин, Максим Юрьевич

AU - Бобрук, Елена Владимировна

AU - Валиев, Руслан Зуфарович

AU - Chinh, Nguyen Q.

PY - 2023/6/30

Y1 - 2023/6/30

N2 - Al–Zn alloys having diferent Zn contents of 2, 5, 10 and 30 wt% were processed by high-pressure torsion (HPT) to produce ultrafne-grained (UFG) materials. Microstructural features of these UFG Al–Zn alloys were investigated using depth-sensing indentations, focused ion beam (FIB), scanning electron microscopy (SEM) and diferential scanning calorimetry (DSC). Emphasis was placed on the microstructure evolution of the alloys with diferent Zn-concentration which demonstrated substantially diferent mechanical behavior, exhibiting superductility with increasing Zn content. It was shown thatin every case, HPT resulted decomposition in the microstructure, but there is a signifcant diference between the microstructures of alloys with low and high Zn content. Based on the microstructural observations, a scenario is proposed about that how the decomposed microstructure developed during HPT process in low- and high Zn-containing Al–Zn alloys, infuencing their mechanical behavior.

AB - Al–Zn alloys having diferent Zn contents of 2, 5, 10 and 30 wt% were processed by high-pressure torsion (HPT) to produce ultrafne-grained (UFG) materials. Microstructural features of these UFG Al–Zn alloys were investigated using depth-sensing indentations, focused ion beam (FIB), scanning electron microscopy (SEM) and diferential scanning calorimetry (DSC). Emphasis was placed on the microstructure evolution of the alloys with diferent Zn-concentration which demonstrated substantially diferent mechanical behavior, exhibiting superductility with increasing Zn content. It was shown thatin every case, HPT resulted decomposition in the microstructure, but there is a signifcant diference between the microstructures of alloys with low and high Zn content. Based on the microstructural observations, a scenario is proposed about that how the decomposed microstructure developed during HPT process in low- and high Zn-containing Al–Zn alloys, infuencing their mechanical behavior.

UR - https://www.mendeley.com/catalogue/ee1d2110-c353-3028-a1b2-752c971a0fab/

U2 - 10.1557/s43578-023-01088-5

DO - 10.1557/s43578-023-01088-5

M3 - Article

VL - 38

SP - 3602

EP - 3612

JO - Journal of Materials Research

JF - Journal of Materials Research

SN - 0884-2914

ER -