Study of changes in the aging process, microstructure, and mechanical properties of AA2024-AA1050 nanocomposites created by the accumulative roll bonding process, with the addition of 0.005 vol.% of alumina nanoparticles

Hamed Roghani; Ehsan Borhani; Ehsan Ahmadi; Hamid Reza Jafarian

doi:10.1186/s11671-023-03917-2

Study of changes in the aging process, microstructure, and mechanical properties of AA2024-AA1050 nanocomposites created by the accumulative roll bonding process, with the addition of 0.005 vol.% of alumina nanoparticles

Discov Nano. 2024 Jan 2;19(1):1. doi: 10.1186/s11671-023-03917-2.

Authors

Hamed Roghani^{1

2}, Ehsan Borhani³, Ehsan Ahmadi⁴, Hamid Reza Jafarian⁴

Affiliations

¹ Nanomaterials Department, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran. h.roghani@semnan.ac.ir.
² School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran. h.roghani@semnan.ac.ir.
³ Nanomaterials Department, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran. e.borhani@semnan.ac.ir.
⁴ School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran.

Abstract

We created AA2024-AA1050 and AA2024-AA1050/0.005 vol.% Al₂O₃ nanocomposites by six accumulative roll bonding (ARB) process cycles. We used AA2024 and AA1050 sheets with a thickness of 0.7 mm and plate-shaped alumina nanoparticles to create a composite. The two AA1050 and one AA2024 sheets (among the two AA1050 sheets) were ARB-ed up to six cycles with and without adding alumina nanoparticles. Also, a sample of the AA1050 without composite making was ARB-ed up to six cycles. We aged some composites after the ARB process in the furnace at 110, 150, and 190 °C. This project performed SEM, TEM, and EDS-MAP analyses, tensile strength, microhardness, and Pin-on-Disc tests to study the ARB-ed sheets. The results of the tensile tests showed that the tensile strength of AA2024-AA1050 created by the six cycles ARB process was two times more than primary AA1050. Also, the wear resistance of this composite was 74% more than six cycles ARB-ed the AA1050. Using 0.005 vol.% alumina nanoparticles in AA2024-AA1050 composite improved its wear resistance by 30%. In the following, the aging process caused an improvement in tensile strength and total elongation of AA2024-AA1050/Al₂O₃ nanocomposites.

Keywords: Accumulative roll bonding (ARB); Aging process; Alumina; Aluminum; Nanocomposites; Nanoparticles.