ROLLED AL-MG-SC ALLOY STUDIED BY TRANSMISSION ELECTRON MICROSCOPY

1 KŘIVSKÁ Barbora
Co-authors:
1 ŠLAPÁKOVÁ Michaela 1 BAJER Jan 2 GRYDIN Olexandr 1 CIESLAR Miroslav
Institutions:
1 Charles University, Faculty of Mathematics and Physics, Ke Karlovu 5, Praha 2, Czech Republic, slapakova@karlov.mff.cuni.cz
2 University Paderborn, Faculty of Mechanical Engineering, Lehrstuhl für Werkstoffkunde Microscopy, Pohlweg 47-49, 33098 Paderborn, Germany
Conference:
26th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 24th - 26th 2017
Proceedings:
Proceedings 26th International Conference on Metallurgy and Materials
Pages:
1800-1805
ISBN:
978-80-87294-79-6
ISSN:
2694-9296
Published:
9th January 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
45 views / 31 downloads
Abstract

Twin-roll cast Al-Mg-Sc alloy was submitted to deformation by cold-rolling. The influence of heat treatment 300 °C / 8 h, which was applied either before or after the deformation, on the deformation microstructure was studied by the means of scanning and transmission electron microscopy and by microhardness measurements. The cold-rolling leads to increase of dislocation density and fragmentation of the grains into subgrains. Annealing both before and after deformation causes precipitation hardening of the material. The in-situ annealing in transmission electron microscope leads to rearrangement of dislocations and partial recrystallization of the microstructure.

Keywords: Al-Mg alloys, Al3(Sc,Zr) precipitates, electron microscopy, heat treatment

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Scroll to Top