ELECTROMAGNETIC PROPERTIES, FORMING LIMIT DIAGRAMS AND FRACTURE TOUGHNESS OF LAMINATED AL/FE2O3 COMPOSITES

Aldriasawi Salman Khayoon (), Nihayat Hussein Ameen (), Kamya Pithode () and Stacy McMahon
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Aldriasawi Salman Khayoon: Mechanical Engineering Department, Kut Technical Institute, Middle Technical University, Baghdad, Iraq
Nihayat Hussein Ameen: College of Agriculture, University of Kirkuk, Iraq
Kamya Pithode: Department of Computer Science and Engineering, IES College of Technology, IES University, Bhopal, India
Stacy McMahon: Department of Mechanical Engineering, Technical University of Denmark. Lyngby, Denmark

Surface Review and Letters (SRL), 2024, vol. 31, issue 03, 1-13

Abstract: In this study, electrophysical, electromagnetic and mechanical properties, fracture toughness and forming limit diagram (FLD) of Al base composite samples have been studied experimentally. All samples have been fabricated via accumulative roll bonding (ARB) process. To this purpose, AA1060/ Fe2O3 composite strips with thickness of 1 mm have been fabricated with up to eight ARB passes at 300∘C. In this study, magnetic Al/Fe2O3 composites reinforced with 0, 5% and 10 wt.% of Fe2O3 particles have been manufactured via ARB. The microstructure was studied by optical microscopy (OM). Also, by decreasing the thickness of layers at higher number of passes (increasing the plastic strain), the bonding quality among the layers was improved. Scanning electron microscopy (SEM) fracture surface morphology of samples after the tensile test showed that by increasing the passes, the fracture style (mode) converted to shear ductile at higher ARB passes. So, deep dimples shrink slowly and their number and depth decreased relative to the annealed sample. As the criterion of formability, the area under the FLDs dropped sharply after the first pass and then improved by increasing the passes. Results of fracture test have shown that the value of fracture toughness has been enhanced continually to the maximum value of 34.3 MPam1/2 at the 8th pass.

Keywords: Accumulative roll bonding (ARB); magnetic properties; electrical conductivity mechanical properties; forming limit diagram (FLD); fracture toughness (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1142/S0218625X24500227

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