THE EFFECT OF ARB PROCESS ON THE CORROSION BEHAVIOR OF THE AL-NANO ZRO2 COMPOSITE

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MATIN SINA; PAKSHIR MAHMOUD; BAZARGAN LARI REZA; MORSHED BEHBAHANI KHASHAYAR

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Journal: Journal of Advanced Processes in Materials Engineering Year:2015 | Volume:9 | Issue:1 (32) Page(s): 81-88

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Title

THE EFFECT OF ARB PROCESS ON THE CORROSION BEHAVIOR OF THE AL-NANO ZRO2 COMPOSITE

Author(s)

MATIN SINA | PAKSHIR MAHMOUD | BAZARGAN LARI REZA | MORSHED BEHBAHANI KHASHAYAR | Issue Writer Certificate

Keywords

ACCUMULATIVEQ2

ROLL BONDING (ARB)Q2

NANO COMPOSITEQ2

POTENTIODYNAMIC POLARIZATIONQ2

ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY (EIS)Q2

Abstract

In this study, the corrosion behavior of Al-nano ZrO2 NANO COMPOSITEs fabricated by ACCUMULATIVE Roll bonding (ARB) process was investigated. Strips of 1050-aluminum alloy of length 250 mm, width of 40 mm, and thickness of 1 mm annealed at 623K in ambient atmosphere and analytical grade of ZrO2 powder with an average size of 40 nm were used as raw materials. The Al-nano ZrO2 composite was produced in 5 cycles. For electrochemical measurements, the square specimens of 10mm × 10mm × 1mm were cut, connected to copper wires and cold mounted. The open circuit potentials (OCP) of the specimens were measured after 24h immersion in the artificial seawater (3.5wt% NaCl), then electrochemical impedance spectroscopy (EIS) and potentiodynamic test were carried out at a scan rate of 1mV/s.The results of potentiodynamic tests indicated that when rolling cycles increase, the corrosion current densities decrease. The results of EIS were also indicative that the increase in rolling cycles increases the polarization resistant (Rp), SEM image of cycles 1, 3, and 5 represents the uniform distribution of ZrO2 particles in aluminum matrix by increasing the rolling cycles.So one can conclude that the corrosion resistant of this composite was promoted because the thickness and uniformity of the oxide layer were increased by the increase in the rolling cycles. This denser oxide layer is as a result of uniform distribution of nano ZrO2 particles in the matrix and helps to increase the corrosion resistant of the composite.

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APA: Copy

MATIN, SINA, PAKSHIR, MAHMOUD, BAZARGAN LARI, REZA, & MORSHED BEHBAHANI, KHASHAYAR. (2015). THE EFFECT OF ARB PROCESS ON THE CORROSION BEHAVIOR OF THE AL-NANO ZRO₂ COMPOSITE. ADVANCED PROCESSES IN MATERIALS, 9(1 (32)), 81-88. SID. https://sid.ir/paper/172563/en

Vancouver: Copy

MATIN SINA, PAKSHIR MAHMOUD, BAZARGAN LARI REZA, MORSHED BEHBAHANI KHASHAYAR. THE EFFECT OF ARB PROCESS ON THE CORROSION BEHAVIOR OF THE AL-NANO ZRO₂ COMPOSITE. ADVANCED PROCESSES IN MATERIALS[Internet]. 2015;9(1 (32)):81-88. Available from: https://sid.ir/paper/172563/en

IEEE: Copy

SINA MATIN, MAHMOUD PAKSHIR, REZA BAZARGAN LARI, and KHASHAYAR MORSHED BEHBAHANI, “THE EFFECT OF ARB PROCESS ON THE CORROSION BEHAVIOR OF THE AL-NANO ZRO₂ COMPOSITE,” ADVANCED PROCESSES IN MATERIALS, vol. 9, no. 1 (32), pp. 81–88, 2015, [Online]. Available: https://sid.ir/paper/172563/en

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