EFFECT OF ARB PROCESS ON WEAR RESISTANCE, PLAN STRESS FRACTURE TOUGHNESS AND FORMING LIMIT DIAGRAMS OF LAMINATED Al/SiC COMPOSITES

Eyhab Ali (), Abdul Nasser Mahmood Fatah (), Ahmed Alawadi, Muataz S. Alhassan () and F. Naderian
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Eyhab Ali: College of Chemistry, Al-Zahraa University for Women, Karbala, Iraq
Abdul Nasser Mahmood Fatah: ��Department of Petroleum Engineering, College of Engineering, Knowledge University, Erbil, Iraq
Ahmed Alawadi: ��College of Technical Engineering, The Islamic University, Najaf, Iraq§College of Technical Engineering, The Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq¶College of Technical Engineering, The Islamic University of Babylon, Babylon, Iraq
Muataz S. Alhassan: ��Division of Advanced Nano Material Technologies, Scientific Research Center, Al-Ayen University, Thi-Qar, Iraq
F. Naderian: *Department of Engineering, Broujen Branch, Islamic Azad University, Shahrekord, Iran

Surface Review and Letters (SRL), 2024, vol. 31, issue 05, 1-13

Abstract: In this study, liquid casting process is used to fabricate AA1050/SiC composites. To increase the wettability of molten Al and improve the adhesion of particles to metallic matrix, liquid casting was selected as the fabrication process. AA1050 and Nano-SiC particles were selected as metallic matrix and reinforcements, respectively. Then, wear, mechanical properties, fracture toughness and forming limit diagram of (FLD) of aluminum composite samples have been investigated experimentally. To do this, AA1050/SiC composite strips with thickness of 1 mm have been fabricated up to eight ARB passes at 300∘C. The graining was investigated via optical microscopy (OM). The ultimate tensile strength (UTS) of samples improved to 170 MPa registering 168% improvement than the initial monolithic sample. Also, the bonding quality among the layers improved by decreasing the thickness of layers at higher number of passes (increasing the plastic strain). SEM fracture surface morphology of samples after the tensile test showed that by increasing the ARB passes, shear ductile was the fracture mode. So, deep dimples are shrinking slowly relative to the annealed sample. The FLDs’ area dropped sharply for pass 1 and then improved at higher passes as the criterion of formability. Also, wear resistance of composite samples was better than monolithic sample. Moreover, at the 10th pass, the fracture toughness enhanced to the maximum value of 33.5 MPam1/2.

Keywords: Liquid casting; wear rate; mechanical Properties; forming limit diagram; fracture toughness; SEM (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1142/S0218625X24500410

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