PHASE IDENTIFICATION IN TWIN-ROLL CAST AL-LI ALLOYS

1 BAJTOŠOVÁ Lucia
Co-authors:
2 GRYDIN Olexandr 2 STOLBCHENKO Mykhailo 2 SCHAPER Mirko 1 KŘIVSKÁ Barbora 1 KRÁLÍK Rostislav 1 ŠLAPÁKOVÁ Michaela 1 CIESLAR Miroslav
Institutions:
1 Charles University, Faculty of Mathematics and Physics, Praha, Czech Republic, EU, lucibajtos@gmail.com, krivska.barbora@seznam.cz, rkralik96@gmail.com, slapakova@karlov.mff.cuni.cz, cieslar@met.mff.cuni.cz
2 Paderborn University, Chair of Materials Science, Paderborn, Germany, EU, grydin@lwk.upb.de, stolbchenko@lwk.upb.de, schaper@lwk.upb.de
Conference:
31st International Conference on Metallurgy and Materials, Orea Congress Hotel Brno, Czech Republic, EU, May 18 - 19, 2022
Proceedings:
Proceedings 31st International Conference on Metallurgy and Materials
Pages:
587-592
ISBN:
978-80-88365-06-8
ISSN:
2694-9296
Published:
30th June 2022
Proceedings of the conference have already been published in Scopus and we are waiting for evaluation and potential indexing in Web of Science.
Metrics:
338 views / 191 downloads
Abstract

Al-Li-based alloys are an attractive material for aircraft and aerospace applications. Preparation of these alloys by twin-roll casting (TRC), which combines rapid metal solidification and subsequent plastic reduction in a single processing step, could improve the properties of the alloys compared to materials prepared by conventional direct-chill casting. A commonly used approach for identifying primary phases is a chemical analysis by energy dispersive spectroscopy (EDS). More accurate results can be achieved by combining the method with diffraction analysis. This process can be considerably simplified in microscopes equipped with automated crystal orientation and phase mapping (ACOM-TEM). Al-Cu-Li-Mg-Zr alloy was prepared by twin-roll casting. A combination of TEM and STEM images with chemical analysis by EDS and ACOM-TEM was used to obtain complex information about phases of boundary primary particles. The efficiency of the individual methods for the phase identification in TRC Al-Li-based alloys is discussed.

Keywords: Al-Cu-Li-M-Zr-Fe alloy, twin-roll casting, phase identification, ACOM-TEM

© 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