Effect of Zr and Ti addition and aging treatment on the microstructure and tensile properties of Al-2%Cu-based alloys

Samuel, Ehab, Nabawy, Ahmed M., Samuel, Agnes M., Doty, Herbert W., Songmene, Victor et Samuel, Fawzy H.. 2022. « Effect of Zr and Ti addition and aging treatment on the microstructure and tensile properties of Al-2%Cu-based alloys ». Materials, vol. 15, nº 13.
Compte des citations dans Scopus : 2.

Prévisualisation

PDF Songmene-V-2022-25057.pdf - Version publiée Licence d'utilisation : Creative Commons CC BY. Télécharger (14MB) | Prévisualisation

Résumé

The present work investigated the effect of aging treatment on the microstructure and tensile properties of an Al-2%Cu base alloy containing various additions of Zr and other alloying elements. Aging was carried out at temperatures of 180–300 °C for different aging times at each temperature. The tensile properties indicated that Zr additions improved the strength of the base alloy, especially at high Zr levels at 180 °C. At the 220 °C aging temperature, however, while Zr addition did not have a beneficial effect on the alloy strength, the ductility was found to improve. Zr-Ti combined additions had a significant effect on the microstructure of the base alloy, as the morphology of the α-Al grains transformed into a non-dendritic morphology, and the grain size decreased sharply. These effects were at their maximum at 180 °C and 0.5 wt% Zr addition. Moreover, the Zr-containing alloys aged at higher temperatures, such as 220 °C and 240 °C, maintained a noticeably higher level of strength over the base alloy aged at the same temperatures. Quality index charts based on the tensile test data also reflected an improvement in alloy quality and strength with Zr-Ti combined additions.

Type de document:	Article publié dans une revue, révisé par les pairs
Professeur:	Professeur Songmene, Victor
Affiliation:	Génie mécanique
Date de dépôt:	28 juill. 2022 20:42
Dernière modification:	13 avr. 2023 16:08
URI:	https://espace2.etsmtl.ca/id/eprint/25057

Actions (Authentification requise)

Dernière vérification avant le dépôt