Original scientific paper

https://doi.org/10.21278/TOF.472042322

Experimental Investigation Into the Effect of Cold Rolling on Fracture Toughness and Mechanical Properties of AA5754 H111 Aluminium Alloy

Wafa Taktak orcid.org/0009-0007-6692-9073 ; National School of Engineers of Sfax, University of Sfax, Sfax, Tunisia
Riadh Elleuch ; National School of Engineers of Sfax, University of Sfax, Sfax, Tunisia

Abstract

The paper deals with the experimental examination in to fracture toughness and mechanical behaviour of an AA5754 H111 aluminium alloy sheet during cold rolling reduction. The fracture toughness parameter J0.2 of the AA5754 H111 aluminium alloy before and after cold rolling was estimated by conducting a ductile tearing test using centre-cracked panel (CCP) specimens along two directions, rolling direction (RD) and transversal direction (TD). The conventional tensile tests in two directions and microhardness tests were also used to investigate mechanical properties of unrolled and rolled AA5754 H111 aluminium alloy. The findings revealed a significant effect of cold rolling on the fracture toughness parameter and the mechanical properties of the AA5754 H111 aluminium alloy along the RD and TD. A fast increase in strength and hardness and a sharp drop in the fracture toughness parameter J0.2 and ductility were recorded with a rise in the amount of cold rolling reduction. The greatest strength was obtained along the RD and the highest ductility was found along the TD.

Keywords

AA5754 H111 aluminium alloy; cold rolling; mechanical properties; fracture toughness

Hrčak ID:

304698

URI

https://hrcak.srce.hr/304698

Publication date:

3.7.2023.

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