STUDY OF HARDNESS AND CORROSION RATE OF COPPER IONS IRRADIATED Mg–Al–Zn ALLOY IN RINGER LACTATE SOLUTION

Muhammad Hamza Akhtar, Naveed Afzal, Mohsin Rafique, Ameeq Farooq, Ali Awais, Muhammad Adeel Aleem and Kaab Bin Tayyab
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Muhammad Hamza Akhtar: Centre for Advanced Studies in Physics, GC University Lahore, Katchery Road, Lahore 54000, Pakistan
Naveed Afzal: Centre for Advanced Studies in Physics, GC University Lahore, Katchery Road, Lahore 54000, Pakistan
Mohsin Rafique: Centre for Advanced Studies in Physics, GC University Lahore, Katchery Road, Lahore 54000, Pakistan
Ameeq Farooq: #x2020;Corrosion Control Research Cell, Institute of Metallurgy and Materials Engineering, University of the Punjab, Lahore, Pakistan
Ali Awais: #x2021;National Centre for Physics, National Centre for Physics, Islamabad, Pakistan
Muhammad Adeel Aleem: #x2021;National Centre for Physics, National Centre for Physics, Islamabad, Pakistan
Kaab Bin Tayyab: #x2020;Corrosion Control Research Cell, Institute of Metallurgy and Materials Engineering, University of the Punjab, Lahore, Pakistan

Surface Review and Letters (SRL), 2021, vol. 28, issue 07, 1-8

Abstract: In this work, the surface properties of Mg–Al–Zn (AZ91D) alloy such as surface morphology, hardness and electrochemical corrosion were studied after copper ions (Cu+) irradiation at different energies (0.8, 1.5, 2.5 and 3.5MeV) while keeping the ion dose constant at 5×1014 ions/cm2. The morphological features of irradiated samples showed defects composed of ejected material from the alloy surface that became more significant at 3.5MeV. The Vickers hardness was increased with increase of the Cu+ energy. The electrochemical testing of the samples was conducted in a Ringer Lactate solution. The potentiodynamic polarization results revealed anomalous changes in the corrosion rate of the Mg alloy with increase of the Cu+ energy. The corrosion rate was considerably decreased with increase of the Cu+ energy to 3.5MeV. These changes were associated with the surface defects and passive film formation on the alloy surface.

Keywords: Corrosion rate; Mg alloy; irradiation; hardness; morphology (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1142/S0218625X21500542

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